430 Memoirs on the Coleoptera 



the grooves, rather more coarsely sculptured. Length (cf ) 3.7 mm.; 

 width 1.65 mm. Kentucky. Levette collection., .longicollis n. sp. 



25 — Species inhabiting the Mississippi Valley, Kansas and Texas 26 



Species of the Atlantic coastal regions, east of the Appalachians 28 



26 — Prothorax evenly narrowed from base to apex, with evenly arcuate 

 sides. Body rather stout and strongly convex, rhomboid-oval, 

 black, the legs piceous; squamules above small and whitish, incon- 

 spicuous and sparse though evident on the elytra, large, dense, 

 oval and white beneath; beak in the female smooth, moderately 

 slender, arcuate, only as long as the head and prothorax, the an- 

 tennae inserted barely beyond the middle, the first funicular joint 

 as long as the next two, the second elongate but thinner as usual; 

 prothorax a third wider than long; apex scarcely constricted and not 

 quite half as wide as the base; punctures moderate, somewhat 

 uneven in distribution but for the most part dense, the smooth 

 median line narrow but subentire; elytra broadly and obtusely 

 parabolic, evidently wider than the prothorax and three-fourths 

 longer, scarcely a fourth longer than wide, the humeral swellings 

 moderate; grooves moderately coarse, very deep, twice— rarely 

 nearly three times — as wide as the grooves, rugosely punctate. 

 Length (9 ) 4.3 mm.; width 2.0 mm. Indiana. Levette collection. 



ignotus n. sp. 



Prothorax with the sides subparallel and very feebly arcuate to about 



apical third, where they become more or less rapidly rounded to 



the apex 27 



27 — Form elongate-suboval, convex, black, the legs sometimes rufo- 

 piceous; squamules of the upper surface small and inconspicuous, 

 whiter, a little less slender and more distinct on the elytra; beak (c?) 

 not very thick, dull and sculptured, feebly, subevenly arcuate and 

 slightly longer than the head and prothorax, the antennae at three- 

 fifths, the tooth of the club small and obtuse, or ( 9 ) smooth but 

 nearly similar in length and degree of arcuation, the antennae less 

 apical and more slender; prothorax a fourth to third wider than long, 

 the punctures not coarse, very dense, the smooth line obsolete; 

 elytra slightly wider than the prothorax and three-fourths (cf ) to 

 two-thirds ( 9 ) longer, the moderately oblique sides feebly arcuate 

 to the somewhat obtuse apex; grooves very deep and abrupt, 

 moderately coarse, fully half as wide as the rugosely punctate 

 intervals, which are mutually subequal. Length (cf 9 ) 3-3-3-8 

 mm.; width i. 35-1. 8 mm, Mississippi (Vicksburg). Taken by 



the writer vicksburgensis n. sp. 



Form more oblong or subparallel, strongly convex, black, the squamules 

 above slender, whitish, not very conspicuous, more so in the female; 

 beak (cf ) thick, feebly arcuate, dull, the sides flattened, barely as 

 long as the head and prothorax, the antennae inserted rather beyond 

 three-fifths, the tooth of the club small and obtuse, obscure, or (9 ) 

 smooth, arcuate and slightly longer than the head and prothorax, 

 the antennae but slightly beyond the middle; prothorax a third 

 wider than long, the barely at all constricted apex truncate and half 

 as wide as the base; punctures rather small but distinct, coarser in 



