192 MEMOIRS ON THE COLEOPTERA 



the humeral angles nearly right and always well marked. The group 

 is more northern and eastern in distribution than the preceding. 



Elytral punctures small to very small and always well separated, the 

 surface even or very nearly; prothorax widest behind the middle. .2 



Elytral punctures decidedly coarse and dense, the surface of each with 

 three broadly convex, unduliform and feebly denned ridges, sepa- 

 rated by sinuous crease-like lines; prothorax widest at the middle. . .4 



2 Sides of the prothorax rather abruptly strongly converging anteriorly 

 in more than apical half and nearly straight. Form oblong-ovoidal, 

 convex, black, the under surface and sides of the pronotum piceous; 

 head rather shining, deeply impressed transversely, strongly but 

 not very coarsely or closely punctate; prothorax three-fifths wider 

 than the median length, the apical angles very acute and the apex 

 scarcely two-thirds as wide as the base, the sides becoming moder- 

 ately arcuate and parallel behind the middle; surface opaculate, 

 rather strongly, evenly convex, very finely, rather sparsely punctate, 

 somewhat narrowly and abruptly, deeply concave and coarsely 

 rugose laterally, the margin strongly reflexed, finely punctate, be- 

 coming gradually much thicker basally ; scutellum well developed, tri- 

 angular, twice as wide as long; elytra large, fully one-half longer than 

 wide, widest at the middle, a fourth wider than the prothorax, broadly 

 and feebly convex, gradually strongly so laterally and apically, 

 rather shining, closely, somewhat deeply, intricately creased and 

 finely though very distinctly but not closely punctate; apex obtuse, 

 the apical lobe small but distinct, the sides parallel and arcuate; 

 abdomen minutely, vermicularly creased, smoother and with distinct 

 punctures posteriorly; prosternum and propleura smooth, extremely 

 minutely and sparsely punctulate. Length (9) 16.0 mm.; width 

 8.0 mm. The label states that the single type was collected by 

 Schaupp in California, but this locality may be regarded as doubtful. 



consentanea n. sp. 



Sides of the prothorax evenly and moderately converging from base to 

 apex, evenly and feebly arcuate throughout. Body deep black, the 

 elytra strongly shining; head transversely and rather sharply im- 

 pressed, strongly, loosely punctate, the vertex finely and sparsely; 

 prothorax less transverse than in pollta and with very much less 

 arcuate sides, scarcely three-fifths wider than long, the apex rather 

 more than two-thirds as wide as the base, deeply sinuate with 

 prominent angles; surface alutaceous, very finely, sparsely punctate, 

 deeply, rather narrowly concave and sparsely punctate at the sides; 

 elytra at the middle scarcely a third wider than the prothorax, 

 nearly one-half longer than wide, the parallel sides broadly rounded, 

 reflexed and thickened at base as usual, gradually more converging 

 posteriorly to the strongly rounded and prominent apical lobe, the 

 surface creased, each with three vestigial lines, the inner from the 

 middle of the base gradually approaching the suture posteriorly, the 



