Barin/E 487 



and very feebly arcuate, rapidly rounding and becoming more 

 transverse in apical fourth to the short but strongly tubulate apex, 

 which is fully half as wide as the base; color black, the surface less 

 convex than in corvina, moderately shining; beak in the female 

 slender, much shorter than in corvina, barely as long as the prothorax, 

 only just visibly arcuate and nearly smooth, the antennje submedial; 

 prothorax fully a third wider than long, the punctures distinct, 

 rather well separated, the smooth line not entire; elytra relatively 

 long, more than one-half longer than wide, only slightly wider than 

 the prothorax and nearly two and one-half times as long; striae 

 deep, feebly subcrenulate; intervals subequal, about three times as 

 wide as the grooves, the punctures sparse, minute and subuniserial. 

 Length (9) 32 mm.; width 1.28 mm. Missouri. 



longipennis n. sp. 



23 — Form oblong-oval, rather convex, black throughout, the sparse 

 setuliform squamae of the upper surface rather more evident than 

 usual in this section; beak in the female slender, smooth, almost 

 straight and as long as the head and prothorax, the antennae medial; 

 prothorax a fourth wider than long, the sides gradually a little more 

 rounding in apical third to the feebly constricted apex, which is 

 rather more than half as wide as the base; punctures small but 

 somewhat strong and well separated, the broad smooth line lost 

 anteriorly; elytra three-sevenths longer than wide, slightly wider 

 than the prothorax and distinctly more than twice as long, the sides 

 just visibly converging and very slightly arcuate, obtusely parabolic 

 in apical third; grooves deep, not at all crenulate and half to a third 

 as wide as the intervals, which are finely, loosely and unevenly 

 uniseriately punctate. Length (9) 3.0 mm.; width 1.2 mm. 

 Missouri (locality unrecorded). One example rivul^ris n. sp. 



Form elongate-suboval, smaller and narrower than the preceding, convex, 

 rather strongly shining, deep black; beak in the female a little 

 longer, perceptibly but feebly, evenly arcuate, feebly and sparsely 

 sculptured and slightly longer than the head and prothorax, the 

 antennae medial; prothorax a fifth wider than long, the sides arcu- 

 ate, a little more so in apical fourth to the very broad, feebly con- 

 stricted apex, which is two-thirds as wide as the base; punctures 

 fine, well separated, the smooth line narrower, not entire; elytra 

 with nearly obsolete squamulae, three-sevenths longer than wide, 

 slightly though evidently wider than the prothorax and much more 

 than twice as long, the sides parallel, rounding in apical half, less 

 obtuse at tip than in the preceding; striae finer but deep, not crenu- 

 late; intervals fully four times as wide as the grooves, minutely 

 and loosely, not very evenly uniseriately punctate. Length (9) 

 2.7 mm.; width i.i mm. Texas (Austin). One specimen, taken 

 by the writer austiniana n. sp. 



Form nearly as in rivularis but with the thoracic sides a little less parallel, 

 being just visibly converging, also more rapidly rounding apically 

 to the tubulate apex, which is more than half as wide as the base; 

 beak in the female nearly as in rivularis, but a trifle less slender, in 

 the male moderately thick, more sculptured, short, not longer than 



