Barin/E 485 



finely and in general confusedly punctate. Length (9) 40 mm.; 

 width 1.65 mm. Mississippi (Vicksburg). One specimen. 



definita n. sp. 



15 — Form narrowly and subevenly oval, notably elongate and almost 

 cylindric ^" 



Form stouter and, even when small and less stout, evidently subventri- 

 cose 18 



16 — Size larger, alutaceous, the elytra slightly more shining. Convex, 

 deep black; beak in the female feebly arcuate, not quite as long as 

 the head and prothorax, nearly smooth, punctulate closely toward 

 base; prothorax nearly as long as wide, the sides parallel, feebly 

 arcuate, rounding apically, the subtubulate apex much more than 

 half as wide as the base; punctures rather small, shallow and widely 

 separated, closer and stronger laterally; elytra one-half longer than 

 wide, the sides parallel and feebly arcuate, rapidly obtusely, ogivally 

 rounded behind, barely visibly wider than the prothorax and fully 

 twice as long; grooves deep; intervals between two and three times 

 as wide as the striae, with single series of small and moderately 

 separated punctures. Length (9) 3-4 rnm.; width 1.28 mm. 

 Nebraska seminitida Csy. 



Size smaller, the entire surface polished and deep black 17 



17 — Body narrow, parallel, convex, subglabrous; beak in the male rather 

 thick, feebly, subevenly arcuate, rather shining, not densely though 

 distinctly sculptured, about as long as the prothorax, the antennae 

 barely beyond the middle; prothorax about as long as wide, the 

 sides broadly, moderately arcuate, becoming gradually parallel in 

 almost basal half, the subtubulate apex broad, two-thirds as wide 

 as the base; punctures small, sparse; smooth median line obliterated 

 from slightly before the middle; elytra parallel, three-fifths longer 

 than wide, barely visibly wider than the prothorax and more than 

 twice as long, the sides nearly straight, subcircularly rounded in 

 about apical third; striae deep but not coarse; intervals more than 

 three times as wide as the grooves, with single series of small and 

 widely spaced punctures; male abdomen feebly impressed medially 

 at base, the prosternum not perforate and with very short, broadly 

 angulate elevations in place of spines. Length (of) 2.85 mm.; 

 width I.I mm. Florida (Enterprise) mediocris n. sp. 



Body smaller, parallel, moderately convex, subglabrous, the legs piceous; 

 beak in the male rather thick, very short, feebly, subevenly arcuate, 

 slightly shining though evidently sculptured, not as long as the 

 prothorax, the antennae near three-fifths, piceo-rufous; prothorax 

 nearly a fourth wider than long, rather wider at the middle than at 

 base, the sides parallel and feebly, subevenly arcuate, the somewhat 

 abruptly tubulate apex three-fifths as wide as the base; punctures 

 fine and sparse, very minute anteriorly; elytra two-fifths longer than 

 wide, barely visibly wider than the prothorax and more than twice 

 as long, with small but evident humeral callus; sides parallel and 

 nearly straight, gradually rounding behind the middle; grooves fine; 

 intervals four times as wide as the grooves, each with a single series 

 of very minute, remotely separated punctures; male abdomen 



