Coleopterological Notices, VI. 763 



twice as long as wide, devoid of impression and colored as stated 

 in the table ; the fifth ventral of the male is excessively feebly or 

 not at all impressed. In all three of these species the punctnres 

 of the el^'tra become ver}^ fine, remote and feeble toward apex. 



IV. lustrelllis. — Some-what stout, shining, pale piceo-testaceous, the 

 elytra with a blackish transverse fascia scarcely before apical third and broadly 

 interrupted at the suture, without other maculation. Head just visibly nar- 

 rower than the prothorax, orbicular, polished, the eyes large, convex and 

 prominent, fully as long as the tenipora; antennaj slender. Prothorax dis- 

 tinctly wider than long, broadly rounded at the sides anteriorly, feebly and 

 obliquely narrowed and sinuate thence to the base, polished, extremely mi- 

 nutely, sparsely punctulate, sparsely and coarsely pubescent, the basal tomen- 

 tose line subinterrupted in tbe middle; horn long and moderately dilated, 

 coarsel}' and deeply crenate throughout, the crest strongly elevated, very long 

 and narrow, the margins distinct and crenulate, acute and feebly defined at 

 apex. Elytra not quite twice as long as wide, parallel, nearly twice as wide 

 as the prothorax, the sides becoming rather abruptly oblique and arcuate in 

 apical fourth to the oblique apical truncature; intra-humeral impression 

 somewhat distinct, the scutellar obsolete; disk sparsely and rather coarsely 

 punctate, the pubescence sparse, coarse, cinereous and decuml)ent, almost 

 evenly distributed, the erect setce indistinct. Under surface coarsely pubes- 

 cent. Length 2.9 mm.; width 1.05 mm. 



California (San Francisco). 



The single male represents a species allied to conformis, but 

 differing in its shorter and broader elytra, more dilated thoracic 

 process, strongl3^ dentellate at the margins and with much more 

 elongate crest, and other characters. There is a small feeble su- 

 tnral spot on each elytron just in advance of the sutural break in 

 the transverse fascia, but no trace of scutellar spot. 



IV. iievadensis. — Moderately stout, parallel, convex, shining, piceous- 

 brown, with a large nubilate transvei'se fascia, interrupted at the suture, at 

 apical fourth. Head much narrower than the prothorax, polished but rather 

 distinctly pubescent and with conspicuously long sparse setae, eyes very small, 

 not much more than one-lialf as hmg as the tempora; antennte moderately 

 stout, feebly incrassate, about two-fifths as long as the body. Prothorax some- 

 what large, subglobular, slightly Avider than long, sparsely, very minutely 

 punctate and polished, the pubescence rather long but not very dense, decum- 

 bent; basal line diminishing greatly in width toward the middle but scarcely 

 interrupted; horn well developed, parallel, not constricted at base, one-half 

 longer than wide, rounded at apex, with the edges moderately coarsely, 

 unevenly and rather feebly crenulate, the crest somewhat pronounced but 

 short and wide, .scarcely one-lialf as long as the horn, definitely limited at 

 the sides but not at apex. Elytra elongate, twice as long as wide, barely two- 



