Coleopferological Notices. 45T 



Arizona — Mr. Morrison. 



This species somewhat resembles rvjipes in its dull, densely and 

 finely punctate integuments and dark pubescence, but differs in its 

 shorter form and smaller size, and, more radicall}^, in the very feeble 

 dilatation of the male tarsi and more rudimentary hind wings, the 

 latter in the present species consisting- of a slender cellulo-membra- 

 nous plate, about three and one-half times as long as wide, and 

 about as long as the prothorax. 



The umbrosus of Champion (Biol. Cent.-Amer. Col., IT, i, Oct. 

 1885, p. 12T) is possibly the same as pimalis, although the length 

 given for innhrosus is substantially greater than in any of the seven 

 representatives of pimalis which I have before me, and the punc- 

 tures of the elj^tral stria3 in the latter do not exhibit the slightest 

 trace of transversal ity. 



38 B. arenariiis n. sp. — Elongate-oval, strongly convex, black, strongly 

 shining ; ]>iibesuence fine, rather short and sparse, fulvous in color and very 

 inconspicuous. Head moderate, wider than long, slightly convex, deeply and 

 somewhat coarsely perforato-punctate, the punctures dense laterally, sparser 

 along the middle, abruptly much finer on the occiput and slightly sparser 

 anteriorly ; epistoma broadly, feebly sinuate, the suture completely obsolete 

 laterally ; upper lobe of eyes rather well developed, oval ; antennje slender, 

 the last three joints robust, second joint a little longer tlian wide and two- 

 thirds as long as the third, the latter but one-fourth longer than the fourth, 

 three to five decreasing uniformly in length. Prothorax 'Aomewha.i elongate, 

 not quite one-half wider than long and two-thirds wid^^r than the head ; sides 

 feebly convergent from base to apex, evenly and rather strongly arciiate ; apex 

 broadly, feebly emarginate in circular arc ; base transverse, the lateral sinua- 

 tions moderate in width and strongly marked ; disk very finely and rather 

 sparsely punctate toward the middle where the punctures are sejjarated by 

 two or three times their own diameters, rapidly larger, deeper and mucli 

 denser in lateral fourth but not coalescent to any great extent ; interspaces 

 flat, polished, minutelj' reticulate. Scutellum small, minutely, rather sparsely 

 punctate. Eliitra fully two-thirds longer than wide, two and one-half times 

 as long as the prothorax and, near the middle, vary slightly wider than the 

 latter ; sides parallel and distinctly arcuate ; apex somewhat narrowly rounded ; 

 disk with very feebly impressed strife, which become very fine toward the 

 suture and much coarser externally, the strise with deep, circular, perforate 

 punctures, very fine internally, much coarser externally, generally separated 

 by about twice their own diameters; intervals nearly flat toward the suture, 

 distinctly convex laterally, finely, not densely punctate, coarsely reticulate, 

 minutely feebly creased, polished. Abdomen shining, very finely, sj^arsely 

 punctate ; pubescence fine, short, recumbent, sparse and inconspicuous. Legs 

 piceous, shining, rather robust. 



