TWO NEW SPECIES OF BEETLES OF THE TENEBRIONID GENUS 
ECHOCERUS. 
By F. H. Chittenden, 
Assistant Entomologist, U. S. Department of Agriculture. 
A study of a series of specimens of the tenebrionid genus Echocerus in the 
National Museum, kindly placed at my disposal for the purpose by Prof. C. V. 
Riley, has led to the discovery of two species that are evidently undescribed.* 
The following brief descriptions are presented in advance of a more extended 
paper which is to be published at an early date. 
ECHOCERUS DENTIGER, new species. 
Form rather slender, convex. Eyes comparatively feebly emarginate; 
canthus slightly foliaceous, hardly extending beyond the eyes at the sides. 
Antennae rather short, closely jointed. Prothorax hardly broader than long, 
sides subparalled, slightly rounded anteriorly ; anterior angles considerably 
produced, acute ; base slightly narrower than elytra. Prosternum finely punc- 
tate ; pro-episterna very coarsely and sparsely punctate. Scutellum short, 
much broader than long, broadly rounded posteriorly. Elytra strongly punc- 
tate-striate ; sutural and adjacent striae more or less deeply impressed. Ventral 
segments moderately coarsely punctured at the middle. Hind tarsi short, first 
joint hardly as long as the second and third together. 
Male : mandibular horns short, suberect; inner margin flattened, with a 
broad irregularly serrate tooth reaching about two-thirds toward the apex; 
apices slender, acute and incurved, not approximate. . Frontal tubercles very 
large and quite obtuse. Canthus not prominent, subacutely produced, reach- 
ing the base of the mandibular horns. 
Female: front feebly reflexed, not extending beyond the eyes at the sides. 
Size.—Length, 2.7 to 3.6 mm.; width, .7 to 1.1 111m. 
Habitat.—Columbus, Texas ; Cocoanut Grove and Crescent City, Florida 
(Schwarz); Allegheny, Pennsylvania (Hamilton); Ohio, Kentucky and Illi- 
nois (Ulke). 
Proceedings of the U. S. National Museum, Vol. XVIII, No. 1041. 
Advance sheet, January 16, 1895. 2 
TWO NEW SPECIES OF BEETLES—CHITTENDEN. 
VOL. XVIII. 
Types in the National Museum, and in the collections of Messrs. E. A. 
Schwarz, Henry Ulke and F. H. Chittenden. 
ECHOCERUS RECURVATUS, new species. 
Form depressed. Eyes large, rounded, rather coarsely granulate, feebly 
emarginate. Anterior angles of prothorax broadly rounded ; base feebly bi- 
sinuate; basal fovea strongly marked. Pro-episterna densely rugosely punc- 
tate. Marginal elytral stria deeply impressed. Ventral segments finely and 
densely punctured at the middle. 
Male : mandibular horns long, slender, simple, ascending and convergent 
from the base, recurved and contiguous at the apices. Front strongly concave, 
posteriorly with an arcuate ridge, forming at each side just above the inner 
margin of the eye, an obtuse tubercle, and medially a small, elevated, more 
or less dentate or sinuate lamina. Canthus small, broadly rounded anteriorly, 
not contiguous to the horns. 
Female : clypeus subtruncate, separated from the front by a deeply im- 
pressed line. Prosternum sparsely punctate and shining. 
S/ze.—Length, 2.9 to 3. mm. ; width, .9 to 1.2 mm. 
Habitat.—Florida : Key West (Morrison, Schwarz) Metacombe Key (Ash- 
mead). * 
Types in the National Museum, and in the collections of Messrs. Schwarz, 
Chittenden and W. H. Ashmead.