\2t) THB CA.NAIMAN KNTOM0L0018T. 



is feebly, transversely concave and sparsely clothed throughout the length 

 and not scarcely at all moditied, as it is in auri^er. 



B. ttutciUntus n. sp. — Form nearly as in setosicornii and auriger but 

 more slender, rufo-piceous to blackish, the beak a little paler, the integu- 

 ments rather more shining, the vestilure similar in distribution but whitish 

 and not yellow ; beak similarly arcuate ; antennae nearly similar and 

 inserted at the middle {(J ), but in the 9 inserted further forward than in 

 setosicornis, at a little beyond basal fourth, the funicular setae not so con- 

 spicuous; prothorax sculptured as in the preceding species but diflering 

 more sexually, apparently longer than wide and very gradually narrowed 

 anteriorly from the middle ( 9 ), or more abruptly from before the middle 

 and shorter than wide ( c? ) ; elytra with slightly more prominent humeri 

 and more rapidly, obliquely narrowed thence to the tip, with feebly arcuate 

 sides, the apex very acute, especially in the female, the sculpture sparser 

 and feebler, more exposed by the scantier vestiture, the strongly punctate 

 striie similarly nearly half as wide as the intervals. Length, <J , 9 , 6.0-6.5 

 mm.; width, 2.3-2.4 mm.; length of rostrum, ^, 3.0 mm.; 9, 69 mm. 

 West Virgmia. 



The fifth ventral is more scantily clothed throughout than in the 

 preceding and does not have such conspicuous apical tufts of hair, and, in 

 the female, the scantily-clad feeble concavity is a Utile narrower. It may 

 be distinguished from setosicornis by its much narrower form, looser vesti- 

 lure and point of antennal insertion in the female. 



B. perexilis n. sp. — Similar in general form and vestiture to most of 

 the preceding species but very small and slender, dark in colour, some of 

 the pale yellowish elytral condensations of the vestiture with feeble 

 metallic glint ; beak slender, the antennie inserted a little beyond the 

 middle ({{ ), or at basal fourth ( 9 ). the funicular joints shorter throughout 

 than in macilentus ; prothorax similar in the sexes, notably shorter than 

 wide, gradually rounding at the sides and narrowing anteriorly from near 

 the middle, more strongly in the male, the punctures strong and dense ; 

 elytra nearly as in maciletitus but with rather finer stri.-e ; legs notably 

 more slender, the femora less clavate. Length, (J , 9 , 45-48 mm.; 

 width, 1.8-2.0 mm.; length of rostrum, <J , 2.5 mm; 9. 4-6 mm. New 

 Jersey. 



The fifth ventral of the male is pubescent at tip, wiih the surface 

 vestiture finer and sparser but not much modified otherwise ; on the fifth 

 ventral of the female there is a deep rounded concavity in about apical 



