TWO NEW SPEClEiS OF BEETLES OF THE TENEBRIONID 

 GENUS ECHOCERUS. 



By F. 11. Chittenden, 



ilstant Entomologist, United States Department of Jijricnlture. 



A STUDY of a series of specimens of the teiiebrionid genus Ecltoee- 

 rus in the National Museum, kindly placed at my disposal for the pur- 

 pose by Prof. C. V. Riley, has led to the discovery of two species that 

 are evidently undescribed. The following- brief descriptions are pre- 

 sented 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 emargi- 

 nate; canthus slightly foliaceous, hardly extending beyond tlie eyes at 

 the sides. Antennae rather short, closely jointed. Prothorax hardly 

 broader than long, sides subparallel, slightly rounded anteriorly; 

 anterior angles considerably produced, acute; base slightly narrower 

 than elytra. Prosternum finely punctate; pro episterna very coarsely 

 and sparsely punctate. Scutellum short, much broader than long, 

 broadly rounded posteriorly. Elytra strongly punctate-striate ; sutural 

 and adjacent stri;e 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 to- 

 ward the apex; apices slender, acute and incurved, not approximate. 

 Frontal tubercles very large and quite obtuse. Canthus not promi- 

 nent, subacutely produced, reaching the base of the mandibular horns. 



Female: Front feebly reflexed, not extending beyond the eyes at the 

 sides. 



Size. — Length, 2.7 to 3.0 mm.; width 0.7 to 1.1 mm. 



Habitat. — Columbus, Texas; Cocoanut Grove and Crescent City, 

 Florida (Schwfvrz); Allegheny, Pennsylvania (Hamilton); Ohio, Ken- 

 tuckv. and Illinois (Ulke). 



Proceedings of the United States National Museum, Vol. XVIII— No. 1041. 

 [Advance dheets of this paper were published January 16, 1895.] 



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