82 H. C. FALL. 



The small size, elongate form, pale color, rounded clypeus, 

 somewhat uneven surface of prothorax, and subobsolete men- 

 tal declivity are more than enough to identify this species — 

 the size, color and habitat usually being amply sufficient. 



83. D. pumila n. sp. 



Oblong-ovate, only moderately shining, the prothorax minutely, 

 the elytra more distinctly alutaceous. Mental declivity rather short, 

 feebly oblique, scarcely margined. Clypeal margin rounded, sub- 

 truncate at middle. Head rather densely punctate, clypeal suture 

 feebly impressed, especially at middle. Prothorax slightly more than 

 one-half wider than long, sides strongly rounded at basal two-fifths, 

 moderately convergent behind, more strongly convergent and nearly 

 straight in front; front angles a little prominent and subacute; punc- 

 tuation close, punctures nearly in contact at sides, separated by their 

 own diameters or rather less, at middle. Elytra about two and two-fifths 

 times as long as the prothorax, first costa evident, second less distinct; 

 first intercostal space confusedly rather coarsely and closely punctate, 

 second with the punctuation somewhat irregular, third with regular 

 series of punctures except toward the base. Body beneath moderately 

 punctate. Teeth of anterior tibiae obtuse, the upper one sub-median 

 in position. Ungual tooth subapical, its tip about twice as distant 

 from the base as from the apex of the claw. Length 5.3 mm.; width 

 3 mm. 



The type specimen in the writer's collection was taken by 

 Prof. Snow in the Baboquivaria Mountains of southeast 

 Arizona. There is a specimen in the Horn collection taken 

 by Wickham in the Santa Rita Mountains, Arizona; and 

 others from New Mexico without specific locality. This is 

 the smallest species of the genus known to me. 



84. D. tarsalis Schf. 



Oblong-ovate, ferruginous to piceous, moderately shining, elytra 

 very finely alutaceous, prothorax barely perceptibly so with a good 

 triplet; punctuation fine and rather sparse. Mentum with coarse, 

 shallow punctures, the declivity very short, feebly or scarcely mar- 

 gined posteriorly. Clypeal margin emarginato-truncate at middle, the 

 angles well defined, sub-dentiform, with or without external sinuation. 

 Head rather sparsely punctate, the clypeus more closely so; clypeal 

 suture moderate. Prothorax three-fourths to four-fifths wider than 

 long, widest at base, the sides nearly straight, and subparallel in basal 

 half, subangularly rounded at middle, straight and convergent anter- 

 iorly; hind angles a little obtuse, their vertices narrowly rounded; 

 surface broadly impressed within the basal angles, punctuation fine 



