Baring 339 



by somewhat less than their diameters, dense and longitudinally con- 

 fluent at the sides, the smooth median line narrow but distinct and entire 

 in the type; basal lobe distinct, the scutellum small, rounded, smooth 

 and impressed; elytra fully two-fifths longer than wide, distinctly wider 

 than the prothorax and almost twice as long, the sides feebly converging 

 and slightly arcuate to the obtuse apex; grooves moderately coarse, 

 deep, smooth, the intervals rather less than twice as wide as the grooves, 

 each with a single series of small and widely separated punctures, the 

 second and third a little wider; humeri rather prominent; setae very 

 minute, indistinct; abdomen somewhat strongly and closely punctate, 

 loosely toward the middle, with a rather short, broad and feeble basal 

 impression in the male. Length (cf) 3.0 mm.; width 1.23 mm. Mis- 

 souri, — Schuster. 



Allied to aperta, but differing in the more closely punctured beak, 

 less evenly rounded sides of the prothorax, more densely and 

 strongly punctate abdomen and less coarsely and more closely 

 punctured metasternum; the type of aperta is a female and the 

 beak is rufescent; it is from Dakota. 



Bans rusticula n. sp. — Narrowly parallel and subcylindric, shining, 

 black, the elytra and legs obscure piceo-rufous; beak slender, feebly 

 arcuate, finely, not densely punctate and four-fifths as long as the pro- 

 thorax, which is between a third and fourth wider than long, with parallel 

 and very feebly arcuate sides, gradually rounding and then oblique in 

 about apical third, the apex scarcely at all constricted; punctures moder- 

 ate though deep, separated by fully their diameters, stronger, dense or 

 subcoalescent at the sides, the smooth median line obliterated or barely 

 suggested, the lobe short and feeble; scutellum very small, rounded, 

 smooth, slightly canaliculate; elytra fully two-fifths longer than wide, 

 not distinctly wider than the prothorax and nearly twice as long, the 

 sides very feebly arcuate, the apex obtuse and the humeri rather promi- 

 nent; grooves somewhat coarse, smoothly abrupt and deep; intervals 

 barely one-half wider than the grooves, each with a single series of small 

 but very distinct punctures, the second and third but little wider; setae 

 very small; abdomen finely, sparsely punctate, gradually less finely but 

 still very loosely toward the sides, having a short broad feeble basal 

 impression in the male. Length (cf) 2.7 mm.; width i.o mm, Colorado 

 (locality unrecorded). 



This is a distinct small species, very parallel and dififering from 

 inconspicua in its relatively narrower elytra, with finer and less 

 close interstitial punctures, sparser punctures and more parallel 

 sides of the prothorax and shorter, much shallower abdominal 

 impression in the male. 



Baris subexilis n. sp. — Cylindric, rather convex, shining, black, the 

 legs feebly picescent; beak in the fernale somewhat thick and strongly 



