PRELIMINARY KEYS TO TEE CULICINE MOSQUITOES OP THE NEW GUINEA REGION Prepared by Lt. Colonel W.V. King (With the cooperation of D.J« Lee of the University of Sydney) Th© accompanying keys include the genera and species recorded from ITew Guinea and adjacent territory from the Solomon Islands to Timor, Ceram and the Moluccas, as well as most of the species that have 'been taken in the northern part of Australia. An opportunity to examine type material in the collection of the School of Tropical Medicine of the University of Sydney, through the kindness of Mr, F.H. Taylor, has made it possible to correct some of the specific names and definitions* Additional differential characters have been given for most of the species of which material was available for examination. Many of the species, however, particularly from the Dutch portion of the area are known only from the original, usually inadequate, descriptions. Adult specimens, both male and female, definitely associated with their larval forms are very much needed for a largo proportion of the species in order to classify this fauna satisfactorily. Loe»s “Atlas of the Mosquito Larvae of the Australasian Region” gives a list of most of the species of which the larvae are not known and indicates others for which adequate material or descriptions are not available* The general distribution of the species as known at present is also given in this publication* Additions to these locality 'ccords, as well as observations on breeding and feeding habits, will bo of value. A number of spocics included in the keys cannot bo assigned to des- cribed species and some of these arc undoubtedly now. It is hoped that these can bo described in the near future. Koys to the genera Triptoroides, Armigeros and Mansonia have not as yet boon completed. It is expected that they will be added later. The abbreviations apn and ppn employed in the keys refer to the anterior and the posterior pronotal lobes; the terms squame and plume scales refer respectively to the approssed and the outstanding scaJ.es of tho wing veins. Other anatomical terms arc those commonly employed in technical publications on mosquitoes. THIRD MEDICAL LABORATORY October 19^ ’ KEY'TO THE GEEEBA OF CULICIES AilD MEG-:' HHI1TE MOSuUITOES 1. Proboscis with the apical half slender and bent downwards nearly at a right angle; a V-shaped thickening in the margin of wing membrane near the tip of vein 5*2; very large irridcsccnt species megarhinus Proboscis not recurved; without V-shaped thickening in the v/ing membrane i... x •. 2 2. Anal vein short,' ending 'about ’opposite* fork of-vein 5»’squamae, without a fringe of .hairs ' 3 Anal vein ending beyond fork of vein 5; squamae fringed; firs*t * ; • forked coll more than half as long as its stem ... 5 3. First forked'cell not more than half the length- of its stem; wing . membrane with very small microtrichia ......... >..... URANO TAENIA T First forked coll distinctly mprp th,an half the length of its stem; wing microtrichia normal, ._.t k k. Proboscis hairy and apical, tjiird much enlarged; wing scales normal# rounded HARPAGOMYIA Proboscis normal; plume scales widened and omarginato at tip HODGESIA 5'. Postspiraxrular hairs absent; segment 0 of female abdomen usually wide and nonrotractilc; female tarsal claws simple •••••••.•••• 6 Postspiracular hairs present; segment 8 of female usually narrowed and more or less retractile; female tarsal claws (at least on foro and mid feet) toothed in most species (except in Mansonia).. ....12 6* Spiracular bristles present. (Hoad and scutcllun completely flat scaled; male palpi short in most species) .......•* TRIPTEROIDES Spiracular bristles absent 7 7. Postnotum with a group of small ha,irs; mcoonoturn without dorso- contral or proscutollar bristles. (Mosonotal scaJ.cs flat;- male palpi short) HEIZMANNIA Postnotum bare; dorsal bristles present on mesonotum ...••••.0 0, Pulvilli present, (plume scales of wing veins linear or only moderately broadened) CULEX pulvilli absent * 9 * * ‘ 4 9* Plume scales linear. Species with distinctly yellowish integument (except linealis) but otherwise of:gonoral resemblance -to,Culcx . .... J.:... MANSONIA (COftUIlLimTOlA) Wing scales all very broad i.;. J ..10 10. Femur of midlogs with an apical scale tuft; all segments of female antenna and last two of male short and thick ...; AffDQMYIA Not as above .11 11, Wings with white-scaled spots; first segment of fore tarsi as long as other four segments together; segment U shorter than 5» male palpi and proboscis not swollen •••••... ’QRTHQPQDOMYIA Wings without definite’ spots' (may be speckled); tarsi not as above; male palpi end proboscis swollen FICAL3IA 1 12, Wing scales very broad, many tip of female abdomen upturned and rounded and tergite 8 with a row pf short spines; f enal 0 claws s imp lo .. MAHSOITIA (KAHS0K$Q LBB^) plume scales linear or not unusually broad (except in Aodos kpchi group, which however havo definite white spots oh wing); female abdomen not as above; female claws toothed in Armigeros and in most species of Aodos .... 2-3 13. Proboscis rathor stout and somewhat curved downwards .towards tip; one mcsopimoral bristle at about centre of lower third of scldritO;; head and scutollum entirely flat sealed. (Male palpi as long as proboscis, the last two .segments slender and without hair tufts; male claspers v/ith a row of spines.) ARMIGuiiluS (APiiIG-EKSS) Proboscis fairly slender and straight; if hoad and scutollum arc largely flat sealed, lower mcscpimcral bristles not present or (in aurimargo) female claws not toothed. (Male claspers without a row of spines; male palpi frequently .otherwise than above) ...' Ah-nas gehus CULEX Spiracular and post-spiracular ‘bristles lacking; pulvilli present; female claws simple; tip of female abdomen usually blunt, more or less compressed dorso-vcntrally, the Sth segment short but nearly as wide as the male palpi usually longer than proboscis, hairy, (The species not otherwise indicated in key belong to subgenus Culox), 1. A row of 5 or more lower mcscpimcral bristles placed towards front of sclcrito, (Proboscis with pale scales underneath in centre;. _ femora well mottled with white; wing scales and tarsi da,rk; abdomen unbonded; mosonotun dark with scattered pale scales around margins ond forming a pair of indistinct spots near middle; a large robust species.)* ........ (Lutzia) halifaxi Thcob. Lower nescpimcral bristles, if present, not more than .throe in number, usually one ..,,•.••••••• . . 2 2. Proboscis ond tarsi ringed with white, the latter usually narrow; no lower mcscpinoral bristles, (Occiput without 'flat scales bordering the eyes.) . 3 Proboscis ond tarsi not ringed; lower mcscpinoral bristles in most species (present unless otherwise stated in key) •♦,....18 3. ¥ing with spots.of white series as in some Anopheles, throe on the costa U Wing without definite palc~sealed spots 5 k. First pale spot from base of wing extending onto vein 1; mosonotum with anterior two-thirds largely pale sealed, (Wing markings of specimens from Australia, Hew Guinea and Borneo do not agree entirely with Barraud's description of this species from India). , .... .ninulus Edw. First pale spot occurs only on costa, and subcosta,; nosonotun dark- sealed with several pa,lo spots, and a, curved lateral lino .... solitarius Bon.-Wop. (In ah illustration of solitarius and in the specimens of mimulus referred to, veins 3» and.basal.half of. 6.are. largely or extensively pale sca,led and there is a large pale fringe sppt at tip of vein 5#2),. , , . , . 4 v ’ V 3* Palp latera.1 spots and harrow or wide bands a,t apex of abdominal segments, (Wings, femora and tibiae sprinkled,.with pale-scales; pcsonetun dark; tarsi with narrow basal rings extending slightly' - ■ onto ,ap?x of some segments.) bitaoniorhynchus Giles. Pale abdominal bands or la,t oral .‘spots mainly at base of segments..6 6, Apical fourth of wing paJLc-scalod, an area, of white scales a,t ba.se of costa and vein 1 and a spriijihLing elsewhere. (Tarsal rings involve apices of segments 1 and 2; a white ring,at base of femora and a,t base and apex .of tibiae; abdomen with brpad basal bands; mosonotum with a, median pale longitudinal stripe and curved lateral ones.) ....... « .. . , . nira,culosus 5*-W. Apical fourth of wing not pale-sealed VV‘ • . 7 7* Anterior two-thirds of mosonotum largely pale-scaled, the posterior third contrastingly dark * ... .8 . * Mosonotum otherwise 10 8, Femora and tibiae mottled with pale scales, a, few pale scales on wing also. (Tarsal rings extending slightly.onto apex.of some segments; abdominal bands narrow, the lateral spots long; occiput with yellowish scales in middle, ,7, dark patch on oacli side ; mosonetal markings rather variable.) ....... squamosus (lay.) Legs not mottled ••••••••••••••«..• . 9 1 V 9. Tarsal rings extending-slightly onto apex of some segments. (Des- cribed by Theobald as having o.chraccous coloured legs w£th scattered dark scales on femora, and tibiae, but given a,s dark and not speckled by Barraud & Bonno-Wepster and Brug.) .. .... golidus Thoob. Tarsal rings basal only; mosonotum strikingly white on anterior two-thirds; abdominal bands very narrow, straight; a,pical half • of last palpal segment of male,pale ........ vicinus (Toy.) * v ■ • > * • • V A 10* Mesonotun-dark-sca,led, with a sprinkling, of pale or golden scales, sometimes sog'rpgatcd around margins and over anto-scutollar spaxc; femora more or loss mottl.cd with white .•••.«.. 11 Mosonotum otherwise , , , , . . . ... , ... • •'•••• 12 11. Abdominal bands usually somewhat irpduccd in, middle; fork/of vein 2 about level with or proximal, to 4 . *. • • anhulirbstriC- Skuse.’ Abdominal bands usua,lly straight or slightly curved on postoriqr margin: fork of vein 2 distal to that of k' . . . . sitiens Wied. 12. kesonotum- rather Uniformly pale, whitish or pale brown . . . 1-3 r i- ' ! ' Mosonotum- .pot miif ormly .pale , « • . , . • . . • ... • • 15’ , 4 . j . . , , f *»••»•*.♦»»» •» 4 13.- McsonOtal series practically all white; femora nettled' fork of ,V Vein 2 dis-tinctly di taT to thdt of U; tarsal rings almost ‘ entirely basal bihamalus. Bdw, Mosenotal scales yellowish or pale bfoWn; legs not nettled , . , lU lh. , Fork of vein 2 level with or slightly didtal'to k.b ("Specimens from, ’ Hew Guinea* possibly this Species, have the abdomen'unbanded or •, with a single row of white scales 4on scgmqnts and ,5?, Ejospnotum quite dark, paler around margins.) . . , vishnui Thcob. Fork of voin 2 distinctly proximal to that of h; abdominal torga with broad basal bands. • . . , . tritabniSrhydchtiar eiamensis Bar. 15. Wing series short and noticeably broadened and darker on veins 3, h.l (apical half) , U.2 'and 5; abdominal t.orga with .median'basal triangular spots or with complete basal bands produced in middle. (Mesonotum with whitish scales, interrupted on posterior third by a pair of dark stripes on each side of space, and sometimes with a dark median longitudinal stripe anteriorly.). ..... vhitmoroi (Giles) Wing scales and abdomirial bands not as above . . , . '. , , , , 16 16. Abdomen with narrow apical white bands .on scgmqnts .5 to. &, .in , addition to the basal bands. (Mesonotum palest on middle third, the anterior third with a variable amount o.f .darker’, scaling, the posterior third with a, dark, area on each side of ante- scutellar .space; wings with a linq of wl.ito scales at base of costa, and speckled along basal half of subepsta; proboscis shorter than fore—femur.)• • . . , , , . H , , basicinctus Bdw, Abdomen without distinct apical .bonds ,. ,. ... ,, , .... 1J. 17. Very small species; mesonotum, with pale, scales .farming a median, , , spot on anterior third, and rather broad lateral curycd lines tending to join across middle; 1st forked coll about twice the length of its stem and its base about .lo.vcl with that of the, 2nd , crinicauda Bdw,* ■■ ■■■»■ ■■■»— 1 mm mum Mesonotum, largely pale sealed on anterior half except for a sub- median pair of dark-scaled spots; largely dark sealed posteriorly except around antes cut ellar sj)a,co; first forked cell as long as or longer than its stem and its, base distinctly distal to that of the 2nd sli« Thoob., Sonsu, Brug 193)+ (In flhoobalcUs original description of alls from Christmas Is.f .* the mesonotum is described as having golden brown scales with creamy ones laterally towards front, spreading onto dorsum about its middle, to form two large pale spot-liko areas.) > * 16.(2)Abdominal terga with basal pale bands of lateral spots .... 19 Abdominal terga unmarked or with apical lateral spots; .... JS) 19» Head, scales all, narrow (pxcopt for the usual patch of flat white ones at sides) . . j , . « , ........ ... . . :,20 Head with at least a narrow line of flab, scales bordering eyes, and , extending nearly to vertex; scales usually broadened on . forks of veins 2 and 1+ . • . .............. , • . Zk 20. Pleura ba& Bf scales, (Head and thorax unifromly pale-scaled, the latter \vith two indistinct median darker lines in front; abdom- inal bands narrow, an apical one on segment VII; plume scales narrow; male with flat scales on head spread farther onto crown; long segment of male palpi with a row of long narrow scales characteristic of this subgenus. If thorax dark brown see cylindricus, couplet 23.)• * * (Culiciomyia) pallidothorax Theob. Pleura with patches of flat scales (unless denuded) 21 21. Abdominal bands rounded on border and separate, or nearly separated, on some segment from the large lateral spots; mosonotal scales usually quite pale, many of them rather largo and coarse; upper half of ppn scaled; largo patches of scales on upper and lower sternoploura and mesopimersii plume sOalos on forked veins all linear (Culex) fatigans Wiod. Without this combination of characters ... i * i 22 22. Lower mcsepimoral bristle absent, (Abdomen with Complete or noarly complete basal bands on segments 2 to h and large lateral spots on others; v/ing scales denser towards tip; male not known.) * , . ••*••• (Lopho coratomyia) cha.ctbventralis (ffhoob,) ' * * Lower mosipimoral bristle present i * ; ,23 23. Mcsonotum uniformly dark brown* the scales very fine* abdominal white bands straight or slightly produced in middle* continuous at sides and somewhat enlarged laterally oh segments 6 and 7» ppn bare; small pa.tchcs of inconspicuous sCales present(? usually) on the upper and lov/cr stornoploUronj plume scales widened on forks of Vein 2; male with modified scale tufts on some of antennal segments characteristic of subgenus Lophocoratomyia (occurring on segments VI to X in this species); head in both sexes without the flat scales bordering the eyes usual in the subgonus, ••••••••, (Lopocoratomyia) cylindricus Ihoob, Mcsonotum with pale scales laterally in front of wings and two pale scaled linos dorsally on posterior half; abdomen with basal la.toral spots which noarly meet on some segments, (Presence of a lower mcsepincral bristle or scales on pleurae not mentioned in the available descriptions so the position of the species in the Key is uncertain. If specimen has abdomen unmarked dorsally and mcsonotum with a double median line, partial submodian lines and lateral linos of white scales see M.(Coquillottidia) lineal is.) , , , (? Qulox) ornatus (ijaoob.) 2h, Abdomen with complete pale bands; pleura bare of scales . • . , 25 Abdomen with lateral spots only, usually small;a0gaap,ts 6nt6 11 &£ ma£o .antennae with .modified scales* 28 25* Abdominal bands wide and prominent; pale flat scales bordering eyes usually separated by narrow scales at midline 2b Abdominal bands narrow; ; . . . , ........ . , . • 2J 26. Lower moscpimcral bristle present; pleural integument usually with a. dark stripe across upper pant extending onto ppn, and another dank oblong spot on upper third of sternoplcuron; .abdominal bands usually straight and continuous a.t sides but sometimes rounded and resembling those of fatigans; thora.cic integument frequently with a distinctly greenish, tinge, -the scales fine; ppn bare of scales except for a few on upper border 4 ....... (Culiciomyia) pullus ' Ihoeb. ilo lower ncsopimcral bristle; male palpi without, hair—like, scales on long segment found in subgonus Culiciomyia; ~ proboscis of malo , with an ill defined pale*ring, most distinct beneath ...... , , , , (Hco culex) cra.ssistyhus . 3rug. 5 2J* Hoad scales nearly all *flat*, ■only a snail median area of narrow ones; nalo palpi short, only about one-fifth length of proboscis; abdominal bands not always present , .(Mochtogonos) malayi (Lcic.) Head with a large triangular axoa of narrow scales; male palpi as long as proboscis; male-antennae with modified scale tufts • • • (Lopho cor at onyia) fraudatrix annulata (Tay.) 2S, Head almost entirely covered with dusky flat scales; pleura usually showing small inconspicuous pa.tchos of scales; modified scales on segment 6 of male antenna, hairlike ............ 29 Head, with a comparatively large median area of narrow scales extend- ing to eyes; pleura bare of scales; scales on segment 6 of antenna distinctly flattened ••••30 29• Segment 6 of male antenna, with only four or five ra.thor short scales •••••*• (Lopho coral onyia.) hilli hilli Edw* About 12 fairly long scales on segment 6 of male antenna , , . , , hilli buxtoni Edw. 30. S.0gmeht .6 with a largo fan-shaped tuft of scales, (Abdominal tergites unmarked in male.),.(Lophoccralomyia) fraudatrix (Thcob,) Scales on segment 6 reduced to about six..fraudatrix solomonis Edw, 31* Abdominal tergites with small apical lateral pale spots; head with a fairly wide lino of flat scales bordering eyes; scales on fork of vein 2 distinctly broadened , , .(Qulicionyia) papuensis (Tay.) Abdominal tergites unmarked 32 32, Occipital scales all narrow; stcrnoploura with a patch of pale scales, (Male palpi about two-thirds length of proboscis; no lower ncsapinoral bristle.), . , . (Hooculox) brovipalpis Giles. Occiput with at leant some flat scales; pleura.o usually bare of scales 33 33* A narrow line of flat scales bordering eyes (loss than in papuensis); plume scales at tip of wing linear; usually two lower mesopinoraX bristles ••.••••••••• (Quliciomyia) sp. near papuensis Head scales nearly all flat; plume scales at tip of wing broadened or spatulato .............. , 3^ Mesopimoral bristle absent; head with a conspicuous lino of pale scales bordering eyes, dark ones behind; male palpi short as in female . , , , (Mochtogonos) cataractarun Edw, Mosepinoral bristle present (? in digoclonsis); male palpi as long as proboscis •••••••• *•••• 35 35. Male antennae normal; thorax^brown, pleura pale'with a bluish tinge when fresh (thorax of larva, distinctly blue); occiput of female with only a small median area of narrow scales behind, the male with a longer area; plume scales mostly linear, slightly broad- ened on forks of vein U; very small species; wing length 2.2 mm, ♦ k »(?Mclanoconion) sp, “blue Culoxtt Male antennae with a small tuft of modified scales on segment g and a. larger one on segment 9; vortex of .head with flat black scales 4 • * 4 * 4 , , , , (Lopho corat omyia) digoolonsis Brug GENUS ASHES Postspiracular bristles present, spiraculp-r bristles and pulvilli absent. About 75 species and subspecies are included in the accompanying key* with representatives of 12 subgenera, the largest number being in Pinlaya. Some of the subgonera may be repognlzed by a combination of,* external characters but others are extremely, difficult except by the male terminalia. The following table shows some of the external char- acteristics of the subgenera. , V . » * Female Occipital . ’ , Eighth tarsal scales Scutcllar Halo *• segment ■ claws mainly scales palpi Tarsi .Submenus. & cercim toothed hroad ■hroad ringed * Mucidus A .v - - . / 0chicrotatus A / - - . . ./ - / or ~ pinloya DfC / some / • V ' ‘ some*./ / / • MaclOaya • C - / / f ■; Pseudo skusfta A or C some - some - * • ♦ ' / ,,! —> G-coskusea B - / I i Rhinoskusea A -(male also) , 7. / ■- ‘ •' . Stcgomyia 0 usually / : / . / / / Acdimorphus A / - -(one sp./) / /.or - Banksinclla A / - - /or - Acdcs B usually / - . - - Leptosomatomyia C •(malo also) / / — • A» tho eighth abdominal segment of female small and retractile, the corci long, slender and projecting from tho ring of segment seven; B, corci . rather long and slender but segment eight not completely re- tractile; C, the corci short; D, the eighth sternum ; large and tri- angular shaped, compressed laterally. All of the known species of Finlay a, in the Au.strala.sian region have the hind tarsi ringed with white, but some dark-logged species arc . known elsewhere. . Only a few of' the subgenera contain species that have lower mesopimcral bristles, and these arc lacking in all species in- clud'd in tho key except (Qchlorotatus) vittigor, (Banksinclla) line topennis, (Mucidus) ftltomans, and (Loptosomatomyia) aurimargo. Information on this characlor is not available "for two others in those subgenera, (0.) purpuraccous and (L.) modiolis» In tho species assigned to the subgenera Aedos and Gcoskusoa, with the. exception of (A.) ceramcnsis and (&T) dal ion s is > t li e r e is a patch of fine hairs on tho postbrTor'*part of the"’ lower noscpincron. Two species 'that have been recorded from the area, (AecLos) macrodixoa and (A.) ancsi are omitted from the key because descriptions are not available. 1, Tarsi concolorous . . . . * . 2 • Tarsi ringed with white . 21 2. Hosonotum concolorous or with'an indifihito mixture of pale and. -t • cark scales (small white spots present in aloes cutcllatus* • • 3 Mesonotum omamontod (sometimes only a white bordejJ ...... IS 3* Mosopinoron with a patch of fine hairs posteriorly on lower half . . . *' , Subgcncra lodes and Gcoskus oa, in part . , -U Mosopinoron without hairs of bristles con lower half. (If a nalc with lower nosipinoral bristles and short palpi, see aurimargo, couplet 20) ,13 U. plume scales on forks of vein-2-rather broadly lingulato (otherwise similar to similis, carmenti and funcrcus; .marking? of abdomen not definite in original description of a single male from Western ilcw Guinea; scales on upper stornoplcuron and mesepimeron dark brown; male coxito with four loaf-like appendages near apex) (Aedes) qua.drifolium Brug, Plunc sca-los usually linear *5 5. Abdomen with dorsal white bands . . . .6 Abdomen without complete dorsal- bands; mosohotal scales dark brown 7 6. Mesonotum reddish-tinged; abdominal terga, with conspicuous, pearly- white basal bands (Aedes) inccrtus Edw. Mcsonotal scales dank brown; a-bdominal bands distinctly removed from base of segments, narrow, enlarging laterally. (Scales on upper stcrnoplcura partly dank, partly whitish; female claws simple (Aedes) funcrcus (Theo.) 7. Lateral pale spots on abdominal torga, basal (usually small); female claws simple (so fan as known); male coxito very long 8 Abdomen with lateral white stripes curving a-way from base of terga,; male coxito not unusually long 12 8. Scutcllum with flat dank scales • • . 9 Scutcllum with linear scales; hind tibia of male not fringed • . 10 9. Hind tibia of male remarkably bristly, with two rows of long hairs on distal half or two-thirds; palpi of both sexes about one- fourth length of proboscis, slightly thickened apically .... (Geoskusoa) fimbripos Edw. Hind tibia, of male with only a few scattered bristles, no fringp; palpi not swollen at tip (Qooskusea) tonsus Edw. 10. Proboscis about as long as fore femur; tarsal calws simple; scales on upper stcrnoplcura white, (one female from Milne Buy) ... ....,(? Aedes) sp. near similis • 1 Proboscis distinctly longer than fore femur 11 11. Palpi slender, not swollen at tips; mesepimeron with fine pale hairs posteriorly on lower half; pleural sutures and mctaplcura pale yellowish (male only known) .. (Geoskusoa) longiforccps Edw, Palpi distinctly swollen toward tip; lower mesepimeron with a few short and a. few longer hairs toward posterior border; lower part of thorax and underside of abdomen yellowish, contracting strongly with the dark legs and upper part of the body (male from Milne Bay) (Geoskusoa) sp. near longiforccps Edw. 12. Eomalo claws toothed; scales on upper stcrnoplcura. usually dark., . ■ .... . (Aedes) Garmenti Edw. Female claws simple;' scales on upper stcrnoplcura, usually pale • • ...... (Aedes) similis Hfyoo'b. 13* (3) Occipital scales narrow; scutcllum densely scaled with pure white flat scalos. (Abdomen usually with complete bands at base of terga; nosonotun with one or two pairs of snail white dots; tips of tibiae white, also tips of femora in male and of hind fonora in female; female claws toothed; corci long and slender; male palpi long, hairy :»ildslightly "banded),, , , • , . ,' (Aodimorphup) -alboscutollatus (Thoob.) Occipital scales flat . . , , .,... , , . . . . , . lh lh. Scutollar scales narrow (? in commons is). ........... 15 Scutollar scales broad'and‘ flat.. i . . . ... . . . . . •. . 1J • . ■■ 1.5* Abdominal terga with basal pale bands. (Female claws simple; corci long; male palpi as long as proboscis). . V . , , , , , . . , . • • • • • -(Psondoskusoa) culicifomis (Thoob) Abdominal terga.with basal la,toral_ spots only 9* • . .16 16. Male palpi long; female claws toothed, (A series of specimens from Dutch Hew Guinea referred-to multiplex by Theobald, 1910, altho the mesonotun showed no trace 0/ the brnimontation found in the type material from Australia; thought by Edwards, 192b, to bo probably a distinct species) • . . • . (Pseudoskusca) sp. near multiplex (Theob.) Male palpi short; female unknown, (scutollar scales’not mentioned in original description but presumably narrow as the species was referred to subgenus Aodos; male coxito with a stout subapical spine as in funeroug but mosopimoron without fine hairs; lateral .. abdominal spots very small). ..,,.(? Aodos) ccranonsi§ ;Brug. .. . . r 17. Scales of head and scutcllum pale; abdomen with large basal lateral white spots. (Said to*be banded, in tho original description, but type female shows only faintest trace of basal bands; male not known) •,•••••.•••.. , (Gooskusca) daljonsis (Tay.) These scales dark;- abdomen unmarked. .(First hind tafcsal segment slightly longer than tibia; proboscis long and slender; male palpi short) , , (ifcinoskusoa) longirostris (1010.) IS.(2) Mesonotun largely pdlo sealed, on anterior half, a largo tri- - engular area of dark brow, .scales posteriorly*«the apex of the triangle ending about midway; abdominal terga metallic violet with basal pale lateral spots; mesopimoron bristles but with some white* soft hairs on the upper part and in tho middle”; male palpi longer than proboscis • * 4 ♦ • . • • , , ;(? Ochlcrotatvis) purpuracous Brug, L ■ .,.■■■■ . I.-—I.... ■ -g—— Mesonotun and abdomen otherwise . .. . • . , , . . , , 19 ; ■ ■. • •• i > ; <■. - 19. Abdomen with basal white bands curving to middle of terga laterally, sonotinos the bands incomplete dors ally; mesonotun with a fairly distinct median golden longitudinal lino‘and.curved lateral ones; mosopimoron without bristles on lower half but* with *a patch of ' fine hairs posteriorly. (Occiput with flat scales, scutollun '■ with narrow ones; wing scales dark* tho plume scales; linear; '• . female claws simple; male palpi short) . ; ♦ . “. ;>*. . . •% , . , , ; (Aodos) func’rous ornatus (Tlioob) • • * « *';•/. '• ' h * Abdominal palo markings not as. above; lower mpsepimoral bristles- :• present; mesonotun with 'bro£»,d; lateral stripes of yellowish •• scales . . . . « . . . . . . . . . . .. .... ■.* *. . • »••• • 20 r. v,.- . . ■ •; ■,; • , -v ... • . .... .. 20. Mesonotum usually with fine median and submedian longitudinal lines of yellowish scales, and with the lateral stripes widening hack of fossae and divided posteriorly-by a.sitipe of dark mid-lobe of scutellum with fXki scales, dark hasally and pale at tip, the side lobes with narrow pale scales. (Occiput nearly covered with flat black scales except for a stripe of white ones toward sides and a small median aroa of narrow ones behind; ppn covered with pale scales, flat below, narrow above; wing scales all dark; abdominal tcrga, with large lateral white spots, similar to those of Armigorcs, and usually With small median basal spots on segments 2 to 5; moscpimoral bristles usually one long and one to throe shorter ones about the middle of the lower half of the sclorito; male and female claws simple; male with mesonotum unornamonted except for a small patch of pale scales above wing roots, and with short palpi) . . .(Loptosomatomyia) aurimargo Edw. Mesonotum dark in middle and the lateral stripes undivided pos- teriorly; scutollar scales all narrow, (Occiput with a large median triangular patch of narrow scales; ppn nearly bare; wing scales pale on basal half of vein 1 and partly so on stem of vein 5; abdominal torga with wide median basal spots, or bands, dark laterally; female claws toothod; male palpi longer than proboscis and with the two apical segments apparently fused) (Banksinclla) linoatopcnnis(Ludl.) 21. Wing membrane with a clouded aroa over cross veins in center of wing and the cross veins in almost a straight lino, a smaller clouded area at base of vein 2; femalo palpi a. fourth to a half as long as proboscis; very large, speckled species with the femora, and tibiae ringed. • (Sub genus Mucidus) 22 Otherwise % . . • 26 22. Wing scales dense and quite broad (becoming narrower toward tip of wing); a white costal spot a.t the tcrnina.tion of subcostal vein, a spot on each of veins 2 and H before the forks, wide fringe spots between terminations of the veins, and well speckled elsewhere; first three tarsal segments ba.sa.lly ringed, others dark; labium entirely pa.lc on apical half except for a dark ring at tip; palpi half a.s long a.s proboscis, the apical segment white; abdomen nearly all yellow scaled; a. group of about 10 lower mcsepinoral bristles; palpi and logs ra.thcr shaggy (Mucidus) alto mans (West w.) Wings very lightly scaled, speckled on costa., subcosta and vein 1; fifth hind tarsal segment all white; proboscis yellowish, speckled with black; palpi yellow except for dark tip, about a fourth as long a.s proboscis; no lower mcsopincral bristles; logs not markedly shaggy (Mucidus) aurantius group 23 23. Bore and mid tarsi not ringed; hind tarsi v/ith narrow basal rings on segments 1-2 or 1-3 . 2k Some of fore and mid tra.sal segments ringed 25 2k. Abdominal tcrga 1 and 2 dark, 3 with some median spots of golden scales, the remaining segments becoming gradually more golden— scaled and the apical ones entirely so.. (Sara.wak) ........ aurantius aurantius (Thoob.) Abdomfen mainly dark, the golden scales almost confined to pairs of dots on tcrga 2 tO'h, and median pa.tches, extending to hind margin, on 5 to 7*» legs darker, the femora, and tibiae with much less conspicuous mottling, (Solomon Islands) , . aurantius nigresccns (Edw.) 25. Tarsal segments 1 to h nil basally ringed v/ith yellowish scales and segments 1 and 2 of foro and mid tarsi with distinct apical handing also, segment 5 of hind- tarsi pure white, of fore and mid tarsi all yellowish; abdominal torga 2—h with narrow ba,sal hands, scalloped on 2, with additional suhnodian spots on 2 and 3, segment k flocked with golden scales and 5-7 becoming increasingly golden; scutum with a herder of golden scales anteriorly and an indefinite stripe a.cross middle. (Horth Queensland). . aurantius chyrsogantor (Tay.) Tarsal segments 1 and 2 with hasal rings, sometimes a spot on 3#* * segment h entirely dark, segment 5 of hind foot pure white, and indefinitely yellowish on foro and mid foot; abdominal torga, 2 to h each with two prominent curved or scalloped hasal patches, nearly meeting in middle, and with additional, suhnodian spots; 5-7 largely yellowish, flecked with da,rk, with or without a dark hasal hand on 5 and 6; tiosoriotun with a stripe of golden scales across front herder. (Milne Bay) , . . . aurantius vor? 26. Wings with pale-sealed spots (at least throe on costa), and pale fringe spots, as in some Anopheles; scales on upper side of wing mostly hroad and truncate; abdominal torga with hasal and' apical white spots or more extensively pale scaled ...... . * . . • (Tinlaya) kochi group 2? Wings without pale-sealed spots (hut nay he speckled) ..... 32 2J. Segment 5 of hind tarsi dark; 'femora and tibiae sparsely speckled,- not ringed; mesonotun with a median, suhnodian and curved lateral linos of white scales; proboscis with two white la-toral stripes dorsaJLly; abdominal sterna without scale.tufts , ... (ffinlaya) gani B.-W. Segment 5 of hind tarsi all white; femora and tibiae ringed alter-., natoly with blank and pale scales; me s one turn ..not lined, usually with a. pabc-scalod border anteriorly; proboscis usually ringed centrally. (Remainder of koy to kochi group from Edwards,l92f6)28 28. Kind tarsi with white rings at the tips of the first throe segments, those on segments 2 and 3 occupying about las' much spaed as the black hasal pant; segment k all black, 5 all white 29. Kind tan si more extensively pale, segments 2 and 3 having only narrow black rings at the base .... , , ; ; ,* ; 31 29* General colour blade, markings pure white; all- the veins with numerous small'white dots; • stornitos 5-7 female with out-' - standing scales Kodai poicilius (Thoo.) ' General colour lighter; wing-markings very'variable, but the light ancas either not dot-liko or else much loss numerous « , « . » 30 30. Stornitos 5-7 of female abdomen with outstanding black scales; pale markings of wings and logs with littlo or no yellow tinge. • Kochi kodi'i (Don.) Ho outstanding scab os at end of stornitc 5# though they arc present on 6 and J; palo markings of wings, femora, and tibiae more or less strongly tinged with yellow . . . . . . . . sanoconus (Grunb.) y ■ r L‘ J 1 31. Proboscis black, with a yellow ring in thq middle and. a narrow yellow tip; fourth hind tarsal segment all blank; stornitos 5-7 with outstanding scales apicably wablacoi Bdw, v. ' im' * v* * . •* - * ' Proboscis and hind mainly yellow, the fourth hind tarsal segment with a narrow dark basal ring; stornitos h-7 with out- standing scales .... flaviponnis (Giles.) 32. Mesonotum not strikingly ornamented, either entirely dark-scaled or with indifinite lines or sprinkling of pale scales (largely golden in occidental is) 33 Mesonotum more or less ornamented with lines or patches of pale scales; hind tarsal segments with broad basal white rings unless otherwise indicated. Chiefly Stegomyia and finlaya ..... 1*0 33. Hind tarsi with segment k all dark, 5 all white, segments 1-3 with broad basal rings; mesonotum usually with faint* indications of yellowish lines (medium, submedian or lateral), sometimes fairly distinct;abdominal terga with median spots or patches, (sometimes forming nearly complete banal bands) and lateral basal spots of white; head with patches of dark and white scales, flat 'except for a harrow median lino; mid-lobe of scutollum with flat scales, dark except for a median tvhito stripe, the side lobes with linear white scales; foiialc claws simple. A small stumpy species ........ (Macloaya) tromula (Thcob.) Hind tarsi not as above; occiput and scutollum with mostly narrow scales; female claws toothed; a.bdomcn with complete bands 3^ 3**. Hind tarsi with broad white basal rings on segments 1 to U (a third to a half length of segment on k), segment .5 dark; 8th sternife prominent, compressed laterally* ccrci short. (Femora well mottled; abdominal terga with the basal bands well separated toward sidos from largo lateral spots) 35 Hind tarsi with rings or dorsad spots on all segments (sometimes indistinct on last two); ccrci long and slender, segment 8 retractile, the sternito not prominent ... 36 35* Femora with a prcapicaJL white ring or large spot;-proboscis mottled with pale scales on banal half (except extreme base) ..... (Finlay a.) alboannulatus (Macq.) ( Femora, not ringed; proboscis all dark; mosonotal scales sometimes ' largely golden with areas of dark scales on fossae and at each side of antoscutcllar space . , , .(Finlaya) occidontalis (Skuso) 36. Proboscis pale scaled, sprinkled with dark, on basal half, the apical portion dark; wings with some pale scales; femora sprinkled with white ....37 proboscis dark or largely so; wings and femora, not speckled, tarsal ’ rings very narrow 3# 37* Hind tarsi with broa.d basal rings on all segments (at least half as long a.s segment on 5); proboscis with a rather sharp donark- ation between the pale and dark portion; abdominal bands straight, the lateral spots in middle of segments ..... (Ochlorotatus) vigilaoc (Skuso) - ■■ " Hind tarsi with narrow rings or dorsal spots decreasing apically' 4 and sometimes indistince on last two segments; proboscis without a sharp dcna.rka.tion between the pale and dark scaling; abdom- inal bands usually distinctly narrower in middle on segments 5 end 6 and slightly separated from the elongated lateral spots (which reach base of segments) ••••••••.•• ♦ (Aodinorphus) voxans (Moig.) (Oriental form) 38. Hind tarsi usually with distinct rings on all segments and dis-* tinctly longer than wide oh at least the first two segments; •v femora, especially the hind ones, largely yellowish on basal 'two-thirds with only a dorsal line of datk scales; abdominal bands narrow, sometimes well separated from lateral spots’-.'- (female only known) (?Acclimorphus) imprinons (Walk.) Kind tarsi with very small rings or dorsal spots, indistinct bn last two segments and scarcely longer than wide on first' two, .39 39* Last two segments of male palpi apparently fused; palpi not banded. (Femora largely pale basally; abdominal bands rather wide and slightly rounded}. (Banksinolla) brugi Edw., ? Z male of inprimens 1 Last two segments of male palpi articulated normally; palpi with a. central pale ring on long segment and dorsal basal spots on apical segments • (Aedimorphus) caccus (Thoob.) Mosonotum with anterior two-thirds largely pale-sealed, cover- ing at least half of the fossae hi Mosonotum not largely pale, (a largo rounded pa/tch. on anterior half in annandalci) . , . . hi. Mid and hing tarsi with banal and apical white rings’ oh segment 1 and a basal spot or complete ring on segment 2 (wider on mid tarsi); fore tarsi all dark; hind femora with banal half all white and an apical white ring; mid-femora, with a banal ring, two spots or stripes centrally and an apical spot below, (Mosonotum with a striking pal eh of linear white scblcs* across front half and upper part of ppn and a broad line around ante- scutollar disc; occiput with a median area of narrow scales, mixed white and dark, bordered by flat dark ones at sides and flnt white ones around eye margins; apn and pi our an with patches of flat white scales, the scutollum with narrow white; abdomen with median and lateral basal white spots) * * • *(Finlaya) sp, Ho.S (near gubornatorius Giles) Tarsi and femora, otherwise ,,.h2 h2. Hind tarsal segment 1 to h or 1 to 5 with broaxl basal rings; meso— no turn with a narrow lateral border of dark scales; abdominal terga with narrow basal bands I4.3 Hind tarsal segments h and 5 not ringed l|i| h3. Mesonotal markings pure white; all hind tarsal segments broadly ringed; ppn with narrow dark scales on upper half, a small patch of flat pale ones below; scutollar scales all narrow, pale except for a median stripe of dark on mic-lobo. (For male specimens compare also couplet 67). . • . (Finlaya) papuonsisf Toy,) Mosonotum broadly white in centre, becoming golden toward side, and with a pair of dark spots near front margin; segment 5 of hind tarsi with a dorsal basal spot only; ppn with narrow golden scales; scutellum with whitish curved scales; wing scales golden, particularly on apical third (Finlaya.) ahggicnsis (£.—¥♦) hh. interior half of mosonotum markedly -golden to lateral edges; hind tarsal segments 1 to 3 ringed at ba.se, U and 5 dark or 5 indis- tinctly paler; abdominal terga 6 and 7 almost entirely golden, 5 with basal half banded, 3 and l| with largo median basal spots,. ..... .(Finlaya) auridorsun Bdw. Scales on anterior half of nesonotun whitish; segments 1 and 2 of tarsi basally ringed; abdomen with pale bands, widening in middle, and lateral spots; scutellum with pale narrow scales; . . .... (Finlaya) australionsis (Thoob.) 45. Mesonotun with two or norc longitudinal lines of white or yellowish scales, sometimes limited to lateral lines "but usually with median or subnedian lines also, often forming- a lyre-shaped pattern • U6 Mesonotun otherwise, a single median line in some species . • • 58 U6, Proboscis with a central white ring I4.7 1 Proboscis without a central white ring , U9 U7. Mesonotun with distinct lyre-shaped markings consisting of a, median and curved lateral fine white linos, sometimes with indistinct sub-median lines, (Abdomen with lateral basal spots; hind tarsi with broad basal bands on first four segments and segment 5 all white; occiput with narrow white scales in centre bordered witli flat dark ones; scutollar scales all broad white; ppn with dark flab scales, apex with a. patch of white), (Pinlaya) notoscriptus, (Skuso) Linos on mesonotun not lyre-shaped , , US US, Mesonotun with five straight linos of white; abdomen with median and lateral basal white spots. . . (ffinlaya) quinque 1 incatus Edw. Linos of scutum less conspicuous and not continuous; labium of female usually with an elonga.to white mark above apically, in addition to the ring; abdominal torga all dank dorsally; scales of pleura tending to form linos (Plnlaya) albilabris Edw. U-9, Proboscis largely pale yellowish on basal two-thirds, dark apically; mesonotun with five quite wide straight linos of white scales, the subnedian pair widening over ante-scuteliar space, (Eonora and tibia.c mottled; tarsal segments 1 and 2 largely yellowish, with apical dark rings, the dark portion wider on other segments; abdomen nearly all yellowish scaled; yellow scales on subcosta and posterior edge of costa; lower mescpimcral bristle present; occiput and scute Hum with narrow scales only) (Ochlerotatus) vittigor (Skuso) Proboscis entirely dark , , , $0 50. Mesonotun with lateral linos or stripes of pale scaAos that curve around posterior edge of fossae; 5th hind tarsal all white $1 Mesonotun without curved lateral lines ,..••••••••• 56 51. Scales of head and scutollun all flat or largely so; mcsonotal lines composed of pure white scales , , , . , 52 Scales of dorsal part of head narrow; mcsonotal lines of yellowish scales; female claws toothed 5*+ 52. Hind tarsi with segment U all dark, segments 1-3 with basal white rings; abdomen with complete white bands that curve away from base of segments laterally, then bark to base below, (Thorax with a median lino of narrow white scales, forked around disc, and lateral curved lines of spindlo-liko scales extending to end of thorax; mid-lobe of scutcllum with flat scales# dark cxcoxot for a median lino of white; side lobes with dark fla.t scales on inner side, narrow white ones laterally; head scales nearly all flat and dark except for narrow median and lateral, lines of broad white ones and a few narrow pale ones on nape and around eye margins; female claws simple; only the tip of eighth sternum visible in typo female; male not known. This species originally placed in subgonus Einlaya, but is either a Stogonyia or Madoaya, It is similar to M. tromula,. couplet 33* except that the latter is smaller, the abdominal bands arc entirely basal and the thorax loss ornamented) (Stegomyia) littlochildi Tay, Hind tarsi with segment U broadly ringed; abdomen not as above,, 53 53* Mesonotum with a pair of fine submedian lines of narrow scales and wide curved lateral lines of broad scales anteriorly continued as fine submedian lines to posterior end of scutum; the pattern distinctly lyre-shaped; clypeus with two dots of white-scales; abdominal terga with narrow baSd white bands and large oval lateral spots, with similar lateral spots-on sterna ‘(Stegomyia) aegypti (Linn.)• Mesonotum with a median and curved lateral lines each consisting- of a single row of small ovoid scales* the median one ending on the ante-scutellar space, the lateral ones extending to apex'of thorax, one across ppA and apn and continued across side of head and along eye margin, another straight lirle of broad white scales across lobes of scutollum, the whole pattern being very dis- tinctive; abdominal terga with small median and lateral basal spots; all femora and tibae lined for entire length;1 wing with a line of white on basal fourth of costa; fcmalo claws toothed; eighth sternum rather prominent. (The typo male of Mimeteomyia pulchor- rimus 'pay., is an Addos aegypti whereas the species thought by Edwards to be this is vory • disTinctivo)' ....... (Finlaya) pulchorrimus (Tay.) sonsu Edwards, I92H 54. Mesonotum with median and submedian linos of yellowish scales, the median line forked around ante-scutellar disc. (Scales of ppn and scutollum all narrow, pale.) ................ (Finlaya) quasirubrithorax (Thoob.) Mesonotum-with incomplete or only faint indication of;median and submodian linos ...... ..... 55 55* Midr-lobo of scutollum With broad white scales, tho side lobes with narrow ones; ppn with scattered black scales, rather small and flat; ring on segment h of hind tarsi about a third tho length of segment; nearly complete bands on abdominal segments 2 to 5» segment 8 all white, . .(Finlaya) sp. near quas irubri tho rax Type A All lobes of scutollum with narrow scales; ppn with narrow white scaj.cs; ring on segment k of hind tarsi about half length of segment. (Probably. only a variont of the’ type of quasiru.br i tho rax) ....... Typo B 56. Segment 5 of hind tarsi all dark; segments 1 to h banally ringed as also aj.1 segments of fore and raid-tarsi, (Mesonotum with fine median and subnedian lines, tho former forked around disc, the latter slightly interrupted in middle and ending about opposite wing roots; head with narrow croainy scaJLos, a patch of larger flat curved golden ones in front; ppn and' scutollum Covered- with narrow, palo scales; abdomen with baspl bands on segments 1 to 6, interrupted on 70 ... (Finlaya), gracilolinoatus B.-W. Segment 5 of hind tarsi not. a. -(Finlaya) auroostriatus (Boles.) 58.(45) Mesonotun with a median line or narrow stripe of pure white scales (less than a fifth the central width of thorax), the remainder dark except sometines over wing roots; • , . . • 59 Mesonotun otherwise . 64 59* Hind tarsi with narrow white rings or dorsal basal spots on first three segments only, segments k and 5 dark; ncsonotal stripe widening slightly posteriorly; mid lobo of scutollum white, the external lobos dark-scaled; pleura with a stripe of silvery white scales across middle; apn and ppn dark scaled; abdomen with narrow basal bands on last three segments; male palpi half to two-thirds as long as proboscis (Stogomyia) albolincatus (Thcob.) n Hind tarsi with broad basal rings on at least first four segments; nesonotal stripe of even width or narrowed behind; male palpi as long as proboscis 60 60. Segment- 5* of hind tarsi dark or partly so; scutcllar scales narrow; vortex of head with a largo median patch of narrow white scales bordered by dark flat ones; male with a large oval median patch of white on mesonotun ins to .ad of a stripe; female claws toothed 61 Segments 5 of hind tarsi all white; scales of head and scdtollum all broad, the former dark on top except for a median stripe of • white, the latter all white, or nearly so; mosonotal stripe similar in the two sexes; female claws simple 62 » • i • <• 61. Segment 5 of hind tarsi all dark; scutellar scales dark; abdomen dark dorsally, with large basal lateral spots; ppn bare except for a small patch of flat palo scales pn lower posterior border. (Dobodura) (ffinlaya) sp. 4 Segment 5 of hind tarsi whit4 on basal two-thirds; scutcllar scales pure white; lateral spots on abdomen rather small except on segments 6 and J; ppn with narrow dark scales above, a small patch of palo ones below; abdomen of male with completedbnMlh bsfnds'1 on, segmentsv.4 ,■ .fc v % 1dm*. (Milne Hay. See also argontoitarsus,.couplet JO). (Finlaya).sp. 4-A 62. Abdomen with narrow white bands at base of some or all of terga 2 to 6, connected with the first of a pair of lateral spots, the second of which, on the extreme lower edgo is slightly sub- basal on the posterior segments; pleura and ppn with patches of , white sealos,but not continuous stripes; ..... (Stogomyia) albopictus (Skuso) Complete, or nearly complete, bands on abdominal torga distinctly removed from base and curving latorally toward middle of segments then back toward base below; pleura with two stripes of broad silvery white scales, one along upper margin extending across ppn and around wing base, the other across middle ... .... .(Stogomyia) scutollaris group. .63 63. (Scutollaris group from Edwards.) Complete abdominal bonds on torgites 3 to 7» nearly touching base of segments in middle, usually some trace on segment 2; sternites with apical black bonds; hind femur yith a large apical spot; fourth hind tarsal ring about 4/5 of segment. (Now Guinea and Solomons) scutollaris scutollo,ris (Walk.) Complete bands on segments 4 to 7» sometimes on 3 but not on 2; further romdvod, about 1/3 the distance from base, (Now Hebrides) scutollaris hobridbus Edw, Bands variable, sometimes broadly interrupted or absent (nearly always the latter oh segments 2 and 7) loss white, loss distinct, and nearer base; ring *on hind 'tarsus* 4' about* half its length, (Tonga and Solomon Islands), . , scutoHaris tongao Edw, Bands broadly interrupted; Uth hind tarsal ring about 2/3 of seg- ment; large apical spot on Iiind fenur, (Fiji and Samoa) scutollaris pseudoscutallaris( lThoob,) and s cutoliari s' ho'rros con 3 Edw. 6U.(5S) Mosonotun v/ith a round or oval spot or a-large patch of white on front half. (Hoad. said scutollar scales all flat; female tarsal claws simple) 65 Mosonotun with a wide medial stripe or with two white patches, . 66 65. A snail oval median white spot near front of mosonotun; hind tarsi with wide basal white rings on segments 1-b and segment 5 all . white; abdomen with basal lateral spots, (if specimen is a male v/ith a rather large oval patch see couplet 69)......... ....... (Stogomyia) odwardsl tulagionsis Edw, A largo rounded white patch on front half of mosonotun and rather large roundish patches of broad white scales in front of each wing root; hind tarsi with segments 3 end 5 black, segment b- nearly all white; abdomen with narrow basal bands widening at sides (Stogomyia) annandaldl Thcob, 66. Mosonotun with a wide median stripe extending nearly to ante- scute liar disc, dark on oa.ch side, 6j Mosonotun with a patch of broad silvery white scales on each fossa. . and similar scale's on apn, pph, scutollum .and over wing roots, (First three segments of hind tarsi with'basal white rings; occiput with narrow white scales; abdominal segments with large median basal spots, triangular or rounded, separated from large la.toral spots that extend onto dorsum). Largo metallic-blue species 7^ 67. Fifth hind tarsal all dark; mcsohotal stripe about ono-third width of thorax and extends to inner edges‘of fossae', widened or bulb- shaped posteriorly; male with the anterior two-thirds of thorax nearly all white-sealed except*for a narrow lateral dark border 6S v !* * * Fifth hind tarsal with a broad basal ring; • • • • 69 « 6S. Posterior cross vein (c.v.b-5)( in line with or distinctly distal to the mid-cross vein (c.v.3-4); a.bdonon with small or somewhat widened basal spots on segments 2 to U (type female has vpry small spots, not basal bands as stated in original description); head with large median area of narrow pale scales; ppn with narrow dark scales on upper half, or a few pale ones also ‘on upper edge, a small patch of flat pale scales below posteriorly; scutollum with narrow scales, white except at base of mid-lobe where they arc dark; mesonotal stripe of pure whito scales • • . (Flnlaya) albitarsis (Tay.). Posterior cross vein at least its own length nearer base of wing t.i an tn c mid-cross vein; otherwise quite similar to albitarsus except that the pale mosonotal and head scales are more golden in some specimens; tori yellowish; dark scales on ppn rather broad, posteriorly and a much larger patch of palo scales on lower half. (A female specimen from Brisbane showed complete narrow basal bands, continuous with the Lateral spots, on abdominal segments 3*-6*)* ........ (Finlaya) palmarum Edw. 69. Abdomen with complete basal bands on segments 3-5 or 6, enlarging at sides; scutellum with pure white scales on all lobes (except possibly at banc of mid-lobe on some specimens); ppn with dark narrow scales above, flat pale ones below; ncsonotal markings in both male and female similar to.alb i tarsi s.(Pinlaya) sp. Uo. 6 Abdomen without complete bands; scutellum not all white scaled. .70 70. Mcsonotal stripe about a fourth the width of the thorax, slightly narrowed anteriorly; scutellum with small curved dark scales on all lobes; ppn with small dark curved scales on upper half; abdomen with a pair of pale spots half way from base to apex on segments 2 to 6 and pale basal or sub-basal la,toral spots • . • , , (Pinlaya) dorooki Bfug. Mesonotal stripe about one-fifth width of thorax, narrowing post03>- iorly; scutellum with white curved scales, on mid-lobe, dark ones on side*lobes; ppn with a small patch o£ flat white scales; a short line of fla,t white scales in front of ba,sc of wing; abdo- men with^lateral basal spots on segments 2 to 6. (Apparently' similar to spedies l?o, Ua, couplet 6l except for xjaxxstaxwidth of ncsonotal strip and dark scales instead of white on scutellum)* .(Pinalya).argontoitarsus Brug 71. Mosonotum with a, median longitudinal lino consisting of a double row of largo flat white scales which forks around antescuteliar disc, and with a lino of similar scales on each side of disc; fossao nearly covered with white scales on posterior half and a, broad stripe continued to front margin of thorax; a largo pa,tch laterally in front and over wing root • • . . . .(Pinlaya) pocuniosus Edw. Mesonotal scales all narrow in middle with an indefinite median line of paler ones; spots on fossa,o smaller, covering about the posterior third; a, lino of broad white scales around disc, merging v/ith a, few narrow pale ones in front; an indefinite sublatcral lino of narrow yellowish scales on oaxh side of ' disc ..... (Pinlaya,) purpurcus (Thcob.) and priostloyi(Tay.) QBKTJS UEALTOTASKIA Small, compact species, usually with the tip of.the proboscis' enlarged. Vein 6 short and first forked cell much shorter than its stem; squamae without fringe of hairs; wing microtrichia very fine; a single bristle on ppn and on lower mesepimeron, no post spiraculars but one strong spiracular bristle usually present; scales of head and scutellum flat; tarsal claws simple and palpi short in both sexes-; male antennae only slightly plumose in some species. Specimens of some of the -unidentified species in the following key wore examined in the University of Sydney collections, as wore also many specimens of identified species in this and other genera. 1. Sides of mosonotum in front of wing root dark scaled; hind tarsi,•** wing and abdominal torga uniformily dark . • . . , • . • • >2 A short line of white or purplish broad scales along edge of meso— notura, (Most of the species with white scaling on the hind tarsi* and basal part of the wing; some with white on dorsum of the abdomen) * . . 7 IS 2. Two large round' velvety-black spots orr the integument on each side,, of mesonotum, one on ppn, the other on the side of the mesonotum in front of wing ro'ot. (pleurae hare of scales'; *occiput with dusky or gray flat scales). .,*... 3 Without such spots U 3. Thorax with a small patch of pale flat scales on each shoulder; ppn t almost entirely covered by the "black spot nigerrima Tay. Fo broad flat scales on shoulders; posterior half or more of ppn Hack * . quadr imaculat a Bdw. Mesonotal integument entirely yellowish, the pleurae pale ochreous; apn with flat dark scales. (Ppn with a few dusky scales around ha.se of bristle; pleurae hare of scales; occiput with dusky scales; 1st tan*sal segment shorter than tibia on fore and mid-logs, equal on hind) (Dobodura) sp. Fo. 1 Mesonotal integument dark; apn with white or pale scales .... 5 5. Occiput covered with pure white scales; pleurae uniformly dark; sternoplourta with a patch of white scales; all first tarsal seg- ments shorter than tihia.o, on mid logs hardly more than half as long.: Dohodura (King); Oaims (Wallace) sp. Fo. 2 Occipital scales largely or entirely dusky in colour (with metallic reflections); pleural integument with .a more or loss pronounced dark stripe from the post-spiracular area axross upper part of stornoplcura and lower part of mosopimoron; pleura, ba.ro of scales.6 6. Occiput covered with dusky scales, pale laterally; apn with a patch* of pale flat .series; ppn with a few similar ones around haso of bristle; first segment of fore and mid tarsi slightly shorter thm tibiae, that of hind slightly longer. (Diagonal stripe on . pleura not mentioned in original description of papua, and apn said to he unsealed) ,. . . . ? papua Brug Head with a margin of white scales around eyes. ’(Lafvd differs from above species) diagonalis Brug 7. Wings largely white scaled; front of scutum and upper part of pleurae whitish yellow. * • nivipos Theob White on wings, if present, limited to base- of some of the veins. S S. Hind tarsi dark. (Head with a wide stripe of white scales around eyes; a whito-sealed stripe across stcmoplcura; abdominal torga with apical pale braids or lateral spots), .......... 9 Hind tarsi white tipped .10 • • _ * i 9. Wings with a line of white scales at base of veins 1 and 5; abdomen with narrow apical braids or large lateral spots on segments 2-6. pygnaea Theob. * * « Wings dark at base; abdomen with lateral apical spots; male with basal segment of front tarsus and tip of mid tarsus peculiarly modified, raid hind tibia with several elongate scales sub- apically. ....... ......... atra Theob. 10. Last throe segments of hind tarsi entirely white, (a line of white scales around eyes and another line across upper part pleura). . . , . . . . . . . > . . . , . . . . * • . • H Basal half or more of segment 3 dark. . 1^ 11. Abdominal torga with a largo apical white pat da on segment h end a few white scales on 3; other specimens possibly of same species with more extensive white, up to a'continuous wide longitudinal stripe on first four segments; apex of segment 2 of hind tarsi, as well as hast throe segments, white; eyes with a wide white border and a lino of white scales across sternoploura argrotarsus? var. of EJW. Abdominal torga all dark.' 12 12. Hoad, v/ith a line of white flat scales bordering eyes, widening laterally, a. large area of black behind; male tibiae not modified, Tsili Tsili (King); Goodonough (Allman) . sp. ITo. 3 Head largely white or at least with a. very wide lino and a com- paratively small area of blank behind; fore tibiae of male shortened, with a. long acalc or hair tuft apically ....... 13 13. Pore tibia of male shortened but the tarsal segments more or loss normal Tibialis Tay. Much larger and with unusually long logs; foxe-lngs— peculiar -eenslructior., ■ in—addirtlen—-halt "tuft; -friibia about two-thirds as long an femurJ stlil -ekapo, -r-omaindor- two oogaontB together t- mtV-wltheut--a distinct j