264 Natura History Buiuetin. 
end, and a rather deep oblong fovea near the middle and 
widest part of the thigh. 
Habitat. Texas. ‘ 
D. sTRENUUM, Lrend. Cinnamon-brown, robust, pubes- 
cence dense, gray, appressed, antenna, palpi and legs paler 
than the body. Length, 2.0mm. Plate VII., Fig. 38. 
flead quadrate, nearly plane, but slightly convex, fovee 
faintly discernible beneath the very dense pubescence, frontal 
margin straight, eyes large. Antenne 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. Pa/fz rather thick and short. 
Prothorax transverse, as long as the head and more than ont- 
fifth wider, fovee large, covered with dense pubescence. 
£lytra one and one-half times 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. ddomen as long as the 
elytra, length of the first dorsal equal to one-third of the width, 
carinz 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 9, the ¢ being unknown to us. Leconte collection, Cam- 
bridge. | 
Habitat. Pennsylvania. 
D. LoncuLumM, rend. Elongate, punctulate, depressed, 
red-brown, pubescence short, sparse. Length, 1.5 mm. 
Pilate VIII. Figua2. 
fTead sulcate from the fovez 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. /ytra one and one- 
