264 Natural History Bulletin. 



end, and a rather deep oblong fovea near the middle and 

 widest part of the thigh. 

 Habitat. Texas. 



D. STRENUUM, Brend. Cinnamon-brown, robust, pubes- 

 cence dense, gray, appressed, antennge, palpi and legs paler 

 than the body. Length, 2.0 mm. Plate VII., Fig. 38. 



Head quadrate, nearly plane, but slightly convex, foveae 

 faintly discernible beneath the very dense pubescence, frontal 

 margin straight, eyes large. Ai}tcnnce very stout, longer than 

 the head and prothorax, first joint thick, obconical, second and 

 third gradually narrower, as long as broad, fourth and fifth 

 slightly longer, sixth heavier, globular, seventh smaller, of the 

 same form; eighth and ninth transverse, gradually larger, 

 tenth ovate, bluntly pointed. Palpi rather thick and short. 

 Prothorax transverse, as long as the head and more than one- 

 fifth wider, foveas large, covered with dense pubescence. 

 Elytra one and one-half tim.es the length of the prothorax, 

 width across the high, prominent shoulders the same. One- 

 fourth from the tip they are one-fourth wider. Discal lines 

 distinct, abbreviated before the tip. Abdomen as long as the 

 elytra, length of the first dorsal equal to one-third of the width, 

 carinee half the length enclosing less than one-half the width, 

 the border rather narrower than in the other species and not 

 quite parallel. Legs stout. 



The specimen from which the above description is made up 

 is ?, the I being unknown to us. Leconte collection, Cam- 

 bridge. 



Habitat. Pennsylvania. 



D. LONGULUM, Brend. Elongate, punctulate, depressed, 

 red-brown, pubescence short, sparse. Length, 1.5 mm> 

 Plate VIII., Fig. 42. 



Head sulcate from the foveas to the subangular frontal mar- 

 gin, eyes prominent. Prothorax nearly globose, as long as 

 wide, widest before the middle, sinuate near the neck, the 

 basal fovea nude, deep, funnel-shaped. Elytra one and one- 



