34 H. C. FALL. 



the first three times as wide as the sutural interspace, the second twice 

 as wide as the adjoining costse; the third nearly as wide as the second; 

 narrower intervals with a single row of finer punctures, which are 

 quite irregularly placed on the sutural interval. Propygidium with 

 apical groove; pygidium not very coarsely or densely punctate. 

 Metasternum and ventral segments finely sparsely punctate at middle, 

 more closely and coarsely at sides. Upper tooth of front tibia a little 

 more remote from the base than from the apical tooth. Ungual 

 tooth slightly post-median, the apex of the tooth distinctly more 

 remote from the base than from the tip of the claw. Length 9-10 

 mm.; width 4.8-5.3 mm. 



The greater number of specimens seen are from Texas, — 

 St. Elmo and New Braunfels being the only specific localities 

 given. There is a single example labeled Tennessee in my 

 collection, and I have seen two from New Mexico — Santa Fe 

 and Pecos — both taken by Cockerell. 



The strong clypeal ridge, very slender terminal joint of 

 maxillary palpi, absence of raised line of the mentum and 

 almost complete absence of setae (there are sometimes one or 

 two) should enable the student to identify this species with- 

 out difficulty, notwithstanding its close relationship to the 

 three following. 



18. D. conformis n. sp. 



Very similar to the preceding species, the description of which 

 applies very nearly except in the following particulars. The clypeus 

 lacks or shows only a trace of the basal ridge; the prothorax is as a 

 rule minutely alutaceous; terminal joint of maxillary palpi less elong- 

 ate, about two and one-half times as long as wide; the mentum shows 

 the transverse row of punctures at the anterior third, a little irregular 

 in arrangement and not all bearing setae; the intercostal spaces of the 

 elytra are not so wide and are less numerously punctate, the first inter- 

 costal space scarcely more than twice as wide as the sutural interval; 

 ungual tooth more nearly median, the distance from its apex to the tip 

 of the claw being very nearly as great as to the base. 



In range this species is more northern and western. It is 

 known to me from Glenwood Springs, Colorado (Fenyes), and 

 from Prescott and Bright Angel, Arizona. Specimens in Mr. 

 Dury's collection are labeled "Northern Arizona." 



19. D. residua n. sp. 



Ferruginous, prothorax polished. Elytra finely alutaceous but 

 shining. Mentum without transverse raised line but with the row of 



