Baring 431 



the female, dense, the smooth median line feebly tumescent, not 

 entire; elytra a third (cf ) or a fourth (9 ) longer than wide, slightly 

 wider than the prothorax and three-fourths (cT) to three-fifths (9 ) 

 longer, the very moderately oblique sides broadly arcuate to the 

 rapidly rounding obtuse apex, the humeral prominences moderate; 

 grooves deep and abrupt, one-half to a third as wide as the rugosely 

 punctate intervals, which perceptibly alternate in width. Length 

 (cf 9) 3.8-4.2 mm.; width i. 75-1. 82 mm. Texas (Dallas), — 

 Wickham dallasianus n. sp. 



Form more rhomboid-oval, convex, slightly larger in size, black; squam- 

 ules of the upper surface small and inconspicuous, white, broadly 

 oval and dense beneath as usual; beak in the female slender, sub- 

 evenly arcuate, smooth and subcylindric, half as long as the body, 

 the antennae inserted slightly beyond the middle; prothorax a third 

 wider than long, in outline as in the preceding but with the some- 

 what coarsish punctures everywhere narrowly though evidently 

 separated, and not very dense as they are in dallasianus, the base 

 more deeply bisinuate, the truncate lobe more prominent; im- 

 punctate median line distinct but biabbreviated; elytra nearly a 

 fourth longer than wide, the moderately oblique sides feebly arcuate 

 to the rapidly rounded obtuse apex, at the moderately prominent 

 humeri distinctly wider than the prothorax, two-thirds longer; 

 grooves moderately coarse; intervals mutually equal, coarsely 

 punctato-rugose, between two and three times as wide as the 

 grooves. Length (9 ) 4.5 mm.; width 2.1 mm. Kansas (Onaga), — • 

 Knaus onagensis n. sp. 



28 — Body elongate-oval, convex, deep black, the squamules above very 

 small and slender, sparse and inconspicuous throughout, the oval 

 scales of the under surface smaller than usual and distinctly separ- 

 ated; beak in the male evenly arcuate, rather thick, coarsely but not 

 densely sculptured and distinctly longer than the head and pro- 

 thorax, the antennae inserted at three-fifths, the tooth of the club 

 small and feeble, obtuse; prothorax not quite a third wider than 

 long, the sides evenly and feebly converging and feebly, subevenly 

 arcuate, a little more so approaching the slight apical constriction; 

 apex briefly subtubulate, half as wide as the base; punctures rather 

 strong, not notably small, irregularly dense, the smooth median 

 line obsolete; basal lobe rather narrow and prominent; elytra at the 

 slightly prominent humeri a little wider than the prothorax, three- 

 fourths longer, very obtusely rounded at apex, the feebly oblique 

 sides somewhat arcuate; grooves coarse and deep; intervals punc- 

 tato-rugose, somewhat alternating in width, from one-half to four- 

 fifths wider than the grooves. Length (cf ) 3.5 mm.; width 1.4 mm. 

 Massachusetts (Southboro), — Frost cribrum n. sp. 



Body larger, more oblong-suboval, strongly convex, black throughout; 

 squamules above very small, sparse, slender and inconspicuous, 

 beneath rather dense, oval and whitish; beak in the male not very 

 thick, longer than the head and prothorax, feebly arcuate, bent at 

 base, strongly sculptured, the antennae inserted near three-fifths, 

 the subbasal tooth of the club small but prominent and sharply 



