Baring 35 i 



more than one-half longer, the sides subparallel, gradually rounding in 

 about apical half, the humeral callus moderate; grooves deep; intervals 

 generally about twice as wide as the grooves, each with a single series of 

 moderate and rather close-set punctures, sometimes confused, as is usually 

 the case, on the second and sixth; setee small, not conspicuous; abdomen 

 with small, evidently separated punctures, coarser and dense toward the 

 sides of the first segment. Length (9) 2.7 mm.; width 1.15 mm. 

 Colorado (Magnolia, Boulder Co.),— Mrs. Casey. 



Differs from arguta in the more parallel form, smaller and even 

 denser thoracic punctures, less prominent humeral callus, rather 

 less abbreviated elytra and shorter beak; it differs from oblita in 

 its shorter beak, more parallel form and closer and more conspicuous 

 interstitial punctures. As in the case of ohlita and metuens, only a 

 single specimen is available. 



Onychobaris metuens n. sp.— Subparallel, strongly convex, slightly 

 shining, colored somewhat as in cerniia; beak in the female arcuate, 

 closely punctulate and rather longer than the prothorax, which is a 

 fourth wider than long, with parallel and virtually straight sides, roundmg 

 in about apical third to the briefly tubulate apex, which is fully half as 

 wide as the base; punctures strong, deep, very close-set but not densely 

 crowded, the median line obliterated; basal lobe small, rather sharply 

 cuspidiform, the scutellum very small, transverse; elytra a third longer 

 than wide, slightly wider than the prothorax and three-fifths longer, the 

 sides slightly converging and arcuate, gradually somewhat narrowly 

 rounding behind the middle, the humeral callus moderately prominent; 

 grooves deep; intervals one-half wider than the grooves, the third a 

 little wider, each with a single, sometimes slightly confused, line of rather 

 conspicuous, moderately separated punctures, the seta; small but pale, in 

 regular single lines and distinct; abdomen punctured somewhat as in 

 ceniua but a little more closely. Length (9 ) 2.7 mm.; width 1.05 mm. 

 Arizona (the locality unrecorded), — Ulke. 



This is a distinct small species, allied somewhat to cernua, but 

 differing in the longer, rather more tapering or less cylindric beak, 

 coarser but less dense pronotal punctures, smaller and more acute 

 basal lobe, smaller and more transverse scutellum, narrower in- 

 tervals of the elytra and several other characters. The prothorax 

 is much more elongate than in pauper ella. 



The following species are more or less closely allied to insidiosa: 



Onychobaris perita n. sp.— Broadly oval, convex, deep black through- 

 out, barely at all shining; beak in the female arcuate, densely punctate 

 and equalin length to the prothorax, which is short, one-half wider than 

 long, the sides feebly converging and broadly arcuate, gradually broadly 

 rounding and converging from slightly before the middle to the briefly 



