54 H. C. FALL. 



not quite three times as long as the prothorax, and barely one-third 

 longer than wide; costae moderately distinct, first intercostal space 

 wide and confusedly punctate; second with punctures in a nearly regu- 

 lar row in type, but somewhat confused in a second example; outer in- 

 tercostal space with punctures evidently irregularly placed; narrow 

 intervals almost devoid of the usual series of fine punctures. Upper 

 tooth of front tibia strong, very slightly nearer the base than the apex. 

 Ungual tooth strongly post-median, a little more apical than in sub- 

 angulata. Length 6.9 mm.; width 3.7 mm. 



This species is known to me only by the two original spec- 

 imens in the LeConte collection, said to be from Frontera, 

 New Mexico. The tabular characters are the best that can 

 be given for its recognition. The lack of the finer punctures 

 of the elytral intervals if constant, is most unusual. 



43. D. connata Schaef. 



Robust, ovate, black, lustre dull, prothorax minutely, elytra dis- 

 tinctly alutaceous. Mentum flat posteriorly, with a few coarse punc- 

 tures, declivous at anterior third, margin of declivity more or less 

 raised and with the usual setae. Front and clypeus in same plane, 

 very densely punctate throughout, clypeal suture more or less com- 

 pletely obliterated at middle; clypeal margin rounded, feebly sinuate 

 at middle. Prothorax two-thirds wider than long, widest at middle, 

 sides strongly rounded, base but little wider than the apex; disk evenly 

 convex, the usual lateral impressions absent or but faintly indicated; 

 punctuation coarse and dense, crowded at sides, the punctures a little 

 separated at middle. Elytra two and one-third times as long as the 

 prothorax, about one-tenth longer than wide, sides broadly arcuate, 

 moderately divergent from the base, punctures dense in the humeral 

 region, elsewhere less close than on the prothorax; geminate rows 

 fairly well marked, the broader intervals confusedly punctate, the 

 narrower intervals with single lines of punctures which are somewhat 

 coarser and closer than usual. Body beneath closely punctate, the 

 metasternum densely so from side to side; metasternum very short, 

 its length between the coxae scarcely equal to that of the second 

 ventral segment. Upper tooth of front tibia submedian in position; 

 hind thighs numerously coarsely punctate; ungual tooth subapical, 

 its tip twice as distant from the base as from the apex of the claw. 

 Length 8.5-9.5 mm.; width 5-5.6 mm. 



Hob. — All specimens known are from the Huachuca Moun- 

 tains of southern Arizona. 



The short metasternum and connate elytra indicate that 

 the species is completely apterous. This appears to be true 

 of no other species in our fauna except macronycha. 



