Coleopterological Notices, VII. 539 



The head is borne on a deeply constricted neck, the constric- 

 tion transverse and simple, the upper surface strongly tumid in 

 the middle toward base, the eyes anterior; front truncate, with a 

 feeble median projection, the antennal cavities large, separated by 

 a narrow and entire lamina, the clj^peus below rather advanced, 

 broad and conical, approaching the form distinctive of Leptomas- 

 tax. Labrum short, transverse, feebly arcuate at apex, not im- 

 pressed, the mandibles moderate, evenly arcuate, acute at apex, 

 each with a slender median tooth internally, that of the right only 

 slightly the longer. Antennae approximate, the basal joint 

 moderate in length, excavated above at apex for the reflexion of 

 the funicle, the club elongate, 3-jointed and finely pubescent as in 

 Eumicrus. Maxillary palpi long and slender, clothed sparsely 

 with coarse erect setae and not minutely pubescent, the third joint 

 longer than the second, narrowed gradually toward base, the 

 fourth minute, obtuse, inserted rigidh^ and axially within its apex, 

 the last joint of the labial slender, oblique and subulate. Mentum 

 trapezoidal and concave, with two discal setae as usual. Prothorax 

 conical, without trace of lateral margin or subbasal foveae or im- 

 pression. Scutellum distinct, triangular, tumid as in Eumicrus but 

 broader. Elytra without basal foveae, entire and broadly rounded 

 at apex, the pygidium large, convex and vertical. Prosternum 

 very elongate, shining and glabrous before the coxae, with a 

 densely and longly setose fovea at the anterior margin of each, 

 deeply and circularly emarginate at apex. Middle coxae very ap- 

 proximate, the mesosternum between them apparently not carinate. 

 Hind coxae rather small, transversely oval, mutually separated by 

 rather more, and each from the sides of the body by rather less, than 

 their own width. Abdomen very short, the basal segment much 

 longer than the next four, which are extremely short. Legs well 

 developed, the hind trochanters much elongated and feebly obconic, 

 the femora distinctly but gradually clavate, the tarsi short and 

 stout, gradually thickened toward base throughout, the anterior 

 not particularly dilated in the male. 



1. C. deforniata Horn— Trans. Am. Ent. Soc, XII, 1885, p. 138 



(Scydmsenus). 



Yery stout, convex and ventricose, polished, impunctate, dark 

 rufo-testaceous throughout, the elytra rather brighter rufous ; legs 

 and antennae paler testaceous ; pubescence sparse, pale, coarse, in- 

 conspicuous anteriorly but dense and bristling from the sides of 



