324 Memoirs on the Coleoptera 



long as the prothorax in the female; prothorax with the upper profile a 

 little more sloping near the apex, large, not quite a third wider than long, 

 the sides parallel, distinctly arcuate, rounding and convergent in about 

 apical third, the apex slightly constricted; basal lobe relatively small and 

 feeble; punctures not very coarse but deep and dense, barely separated 

 medially, the median smooth line obsolete; scutellum small, subquadrate, 

 punctulate but not impressed; elytra fully one-half longer than wide, 

 barely at all wider than the prothorax and about twice as long, the sides 

 very feebly converging and nearly straight to the rapidly obtuse apex, 

 the humeral callus distinct, obtuse; grooves rather coarse, deep, the 

 punctures distinct, sometimes slightly crenulative; intervals twice as 

 wide as the grooves, with single series of very fine punctures, the second 

 and third wider and with more confused punctures; abdomen strongly 

 but loosely punctate. Length (9 ) 4.8 mm.; width 1.9 mm. California 

 (south of San Francisco), — Dunn. One specimen. 



I do not understand how the type of this species could have been 



placed with typical tenuestriata, where the elytral striae are notably 



fine and not over a fourth or fifth as wide as the intervals ; it is also 



a much larger species, with more densely punctured prothorax. 



Baris instans n. sp. — Elongate, subparallel, convex, deep black through- 

 out, not very shining; beak (c?) thick, feebly arcuate, densely punctate, 

 three-fourths as long as the prothorax, the upper profile of which is 

 almost evenly arcuate, fully a third wider than long, the sides subangu- 

 larly inflated near the base in the types, thence feebly converging and 

 almost straight, .rounding broadly and converging in about apical third; 

 punctures moderate but deep and dense, slightly separated and a little 

 smaller medially, the smooth line narrow, not extending to the apex, 

 which is very briefly subconstricted; scutellum transversely ovoidal, 

 feebly punctate; elytra fully one-half longer than wide, equal in width 

 to the broad prothorax and very nearly twice as long, the sides parallel, 

 gradually rounding behind from about the middle, the humeral callus 

 very moderate; grooves deep and crenulate, moderately coarse; intervals 

 flat, not quite three times as wide as the grooves, with the very fine 

 punctures forming a broadly confused line along the middle of each; 

 setae very minute, scarcely observable; abdomen rather strongly but 

 loosely punctate, with a strongly punctate impression in the male, 

 extending half through the second segment; pygidium only feebly 

 convex, densely punctate. Length (cf 9) 4.0-4.6 mm.; width i. 65-1. 8 

 mm. California (south of San Francisco), — Dunn. Three examples. 



The type indicates a species very different from tenuestriata in the 



coarse elytral grooves and much inflated prothorax, and, from 



laxicolUs, it differs in the less coarse elytral grooves and slightly 



less stout and more parallel form of the body. The dimensions of 



the unique male type of tenuestriata are 4.3 by 1.45 mm. 



Baris gradata n. sp. — Somewhat narrower than instans, more shining, 

 deep black throughout; beak arcuate, densely punctate, very nearly as 



