272 THE CANADIAN ENTOMOLOGIST. 



Cheiroplatys verttcalts, n sp. — Black above, castaneous or blackish- 

 castaneoiis beneath. A little smaller than clunalis, from which it differs 

 chiefly as follows : Body more distinctly wider behind, cephalic tubercle 

 very obviously more posterior in position ; prothorax much more sparsely 

 and finely punctate in front, side margins a little stronger, front margin 

 without trace of median prominence, basal marginal groove deeper, and 

 nearly equally strong throughout ; ventral segments more punctured, apex 

 of middle and hind tibiae strongly crenulate and with fewer spinules; front 

 libise acutely tridentate. There are some other small differences which may 

 or may not be specific in nature. 



Length, 22-23 mm.; width, about 13 mm. 



Las Vegas, New Mexico. 



Two examples, both apparently females, sent by Prof. Cockerell. It 

 is not unlikely that specimens of this species will be found mixed with 

 clunalis in collections ; if so, the characters given above are amply 

 sufficient for its recognition. I have compared with Fairmaire's descrip- 

 tions of Mexican species, and do not find any mention of the points which 

 I rely upon here. Bates, in the " Biologia," gives four Mexican species, 

 viz., cultripes^ clunalis^ Fairmairei and isodonoides. The first, he says, 

 is " barely distinguishable from clwialis by the immarginate base of the 

 prothorax. Under clunalis he places Fairmaire's Sallei and marginatus, 

 and a study of the descriptions convinces me that this course is correct. 

 Both Fairmairei and isodonoides are distinctly smaller species than 

 verticalis. 



Gymnetis i?npius, n. sp. — Smaller and less robust than Sallei or 



cretacea, upper surface in typical specimens uniformly velvety black, 



without sculpture or markings ; lower surface shining black, with greenish 



reflections. In many examples the prothorax and elytra are entirely 



brownish yellow, in which case the velvety aspect is less pronounced, and 



there are visible faint lines of minute punctures on the elytra, and very 



fine scattered punctures toward the sides of the prothorax. These 



examples may or may not be fully mature. Clypeus widely reflexed, 



front concave and acutely longitudinally carinate ; basal lobe of thorax 



acutely rounded, lateral marginal bead strong ; mesosternal epimera 



punctured and hairy above ; sutural angles of elytra divergent and a little 



prominent ; metasternum rather densely punctured at sides, smooth at 

 middle, its intercoxal process flat and obtusely rounded in front. 



Length, 17-18 mm. 



Fort Huachuca, Arizona. 



