Coleopterological Notices, VI. 643 



The representatives of this genus are very rare in collections, 

 and scarce!}' anything can be stated in regard to their trne geo- 

 grapliieal distribution. 



1. D. iiiyriiiecops n. sp. — Very slender and elongate, black, the sterna 

 of the hind body and elytra below the humeri paler; antennse pale flavo- 

 testaceous, the last four or five joints dark; legs pale ochreons throughout. 

 Head oblong, rounded at base, the sides parallel for a long distance behind the 

 eyes, which are small, anterior and scarcely at all prominent; surface moder- 

 ately convex, rather coarsely, very densely punctate, the punctures confluent 

 laterally, feebly pubescent; antennse long, slender, one-lialf as long as the 

 body, the third joint distinctly longer than the fourth, outer joints slightly 

 thicker. Ptothorax slightly narrower than tlie head, much longer than Avide, 

 deeply but not acutely constricted at basal third, the anterior lobe almost regu- 

 larly globular ; collar distinct, finely, deeply constricted ; basal margin wide 

 but not at all tumid, defined by a fine imi^ressed line and by its less sculp- 

 tured siirface; disk extremely minutely and densely punctate, and densely 

 clothed with minute decum1)ent hairs. Elytra much longer than the head and 

 prothorax combined, deeply, transversely impressed near the base, slightly 

 dilated and moderately convex behind, twice as wide as the prothorax, nearly 

 twice as long as wide, densely, extremely minutely and scarcely visibly 

 panctulate, the pubescence very short and decumbent, dusky-cinereous and 

 inconspicuous except in a transverse basal band and broader fascia at basal 

 two-fifths, where it is brown, the posterior brown fascia bordered anteriorly on 

 each elytron with a narrow oblique fascia of coarser silvery-white pubescence. 

 Under surface minutely, densely punctate and pubescent. Legs moderate 

 in length, rather thick, minutely pubescent. Length 2.8 mm. ; width 0.7 mm. 



Soutliern Illinois. 



The upper surface is beset with extremely sparse and perfectly 

 erect stitf setjie, rather long on the elytra. The male has the fifth 

 ventral unmodified, the minute genital segment deeply and circu- 

 larly emarginate throughout its width at apex. 



A single specimen, kindly given me a few years since by Mr. 

 F. M. Webster. 



2. D. iiniciis n. sp. — Slender, dull black, the tarsi and basal joints of the 

 antenna; testaceous; legs, under surface of the hind body, and eleventh an- 

 tennal joint more or less pale piceous. Head convex, oblong-oval, broadly 

 rounded at base, rather coarsely and very densely punctate, feebly pubescent, 

 the eyes very small and anterior; antenme one-half as long as the body, slen- 

 der toward base but gradually (juite thick toward apex. Prothorax much nar- 

 rower than the head and much longer than wide, the constriction near basal 

 third deep and broadly angulate at the sides, the apical lobe subglobular and 

 rather longer than wide; collar distinct; ba,sal margin wide, flat, defined only 



Annals N. Y. Acad. Sci., VIII, Sept., 1895—44. 



