368 Memoirs on the Coleoptera 



single series of coarse and close-set subtransverse punctures, smaller, 

 sparser and confused along the middle of the second and third, which are 

 evidently wider; setae indistinct, except a minute cluster of three or four 

 at the base of the third interval; abdomen with small but deep, loose 

 punctures, coarse and close at the sides, with a very shallow medio- 

 basal impression in the male. Length (cf ) 3.25 mm.; width 1.3 mm. 

 Missouri (Schuster). Probably from St. Louis. 



Distinct in the oblong-suboval form, though obtuse behind, in the 

 transverse, densely and strongly punctured prothorax, with evenly 

 arcuato-convergent sides and in the single series of coarse sub- 

 transverse interstitial punctures. 



Pseudobaris vacunalis n. sp. — ^Much smaller, oblong-oval, moderately 

 shining and convex and deep black throughout; beak in the apparent 

 male moderately arcuate, somewhat thick and densely, subrugosely 

 punctate, tapering, flattened and less sculptured apically and as long as 

 the head and prothorax, the latter a fourth wider than long, the sides 

 converging and straight to about the middle, there gradually rounding to 

 the constriction, the apex slightly more than half as wide as the base, 

 the basal lobe relatively rather large, broadly rounded; punctures some- 

 what coarse, deep and dense, the smooth median line narrow but distinct 

 from base to apical third; scutellum transverse, broadly angulate behind; 

 elytra feebly ovulate, rapidly subcircularly rounding in about apical 

 third, two-fifths longer than wide, distinctly wider than the prothorax 

 and not quite twice as long, the humeri moderately prominent; grooves 

 rather coarse, deep; intervals one-half wider than the grooves, with 

 single series of relatively coarse though separated, subtransverse punc- 

 tures, the second, and third a little wider, with single even series of some- 

 what less coarse punctures; setse distinct though small, with two or three 

 forming a minute cluster at the base of the third interval; abdomen 

 with fine loose medial, and coarser dense lateral, punctuation, the medio- 

 basal region scarcely more than feebly flattened in the type. Length (cf ) 

 2.75 mm.; width 1.15 mm. Texas (locality unrecorded). 



Easily distinguishable from most of the immediately preceding 

 species by the very obvious short and uniform elytral setae in single 

 series; it is relatively shorter and stouter than any of the forms 

 allied to nigrina, and has no scattered white hair-like scales on the 

 elytra. 



The following four species form a distinct group, to which ccdata 

 and nigrina should be attached, characterized by a few widely 

 scattered but very distinct long white hair-like suberect scales on 

 the elytra; the group includes some of the smallest species of the 

 genus : 



Pseudobaris rabida n. sp. — Oblong-suboval, rather convex, moderately 

 shining, deep black throughout; beak in the female long, arcuate, finely 



