488 Coleopterological Notices. 



sparsely punctate, the posterior tibiae arcuate throughout the length, nearly 

 glabrous but abruptly and very densely, finely pubescent near the apex, espe- 

 cially internally ; tarsi wanting in the type. Length 15.5 mm. ; width 6.7 mm. 



California (Mojave Desert). 



A single mutilated specimen of this unusually isolated species 

 was found dead by Mr. Dunn in a decaying stump. It cannot be 

 compared with any other of our species and is remarkable because 

 of its oval elytra, with very wide epipleurse and totally obsolete 

 humeri, and its extremely coarsely and deeply sculptured but 

 polished upper surface. It is one of our largest species. • 



Although the punctures of the elytral series are coarse, they are 

 not as wide as the impressed sulci and only about one-fourth as 

 wide as the intervals. 



I!, gliadallipeiisis n. sp. — Elongate, subparallel, convex, shining, 

 piceous-black ; under surface and legs dark rufo-piceous ; antenna? fuscous. 

 Head a little wider than long, very coarsely, deeply punctate, the punctures 

 forming loug interlacing rugae, but finer, round and distinctly separated on 

 the epistoma, the latter truncate ; eyes transverse, very strongly convex, more 

 prominent than the sides before them ; antennae slender throughout, two-thirds 

 as long as the elytra in the male, one-half as long as the latter in the female, 

 tenth joint more than twice as long as wide in the male, one-third longer than 

 wide in the female. Prothnrax about one-fourth wider than long ; apex equal 

 in width to the base, broadly, evenly arcuate throughout, the angles right and 

 narrowly rounded ; base truncate ; basal angles very broadly obtuse and 

 rounded ; sides parallel, very evenly and rather feebly arcuate throughout ; 

 disk evenly, feebly, transversely convex, coarsely, very deeply and extremely 

 densely punctate throughout, the punctures forming short interlacing furrows 

 and very narrow intervening ruga?, not appreciably sparser toward the middle 

 in the male, but slightly so in the female. Elytra three times as long as the 

 prothorax and more than one-third wider, parallel, the sides but just visibly 

 arcuate ; humeri distinct but narrowly rounded ; disk with fine but deep and 

 abrupt stria? which are finely catenulate, the punctures totally disappearing 

 toward apex ; intervals very feebly convex, extremely minutely and sparsely 

 punctate, each with a single series of small feeble and distant tubercles, only 

 visible toward the sides and apex. Abdomen finely but distinctly and somewhat 

 sparsely punctate ; metasternum between coxa and groove subequal in length 

 to the first ventral segment in both sexes. Legs rather long and slender, the 

 hind tibiae straight, pubescent throughout ; anterior tarsi very feebly dilated 

 in the male. Length 11.0 mm. ; width 4.2 mm. 



Island of Guadalupe. 



This species is to lie placed near bachei Lee, but in considering it 

 a variety of that form, Dr. Horn (Trans. Am. Ent. Soc, V, p. 201) 

 has overlooked an important structural character relating to the 



