SUBGENUS TRICHAPION — KISSINGER 381 



punctate, apex shining. Antennae of male inserted at distance from 

 eye one-half greater than width of frons at basal two-sevenths, of 

 female at distance from eye one-third greater than width of frons at 

 basal one-fourth; first segment of male shorter than next two, of 

 female equal to next three; second segment of male shorter than next 

 two, of female longer than next two; female club 0.24 by 0.12 mm., 

 male club 0.30 by 0.12 mm. ; dorsal margin of antennal scrobe angulate, 

 Prothorax at base slightly wider than long, middle one-sixth wider 

 than base, apex two-thirds as wide as base; sides broadly roimded; 

 in lateral view dorsal surface moderately strongly convex, flattened 

 basally and apically; punctures moderate, 0.04 mm. in diameter, 

 interspaces convex, alutaceous, one-half as great as diameter of 

 punctures; basal fovea deep, linear, extending one-third length of 

 prothorax. Elytra at humeri two-fifths wider than prothorax at 

 base, three times as long as prothorax, length to width as 16.5 : 11; 

 intervals twice as wide as striae, nearly flat to slightly convex, with 

 two or three rows of fine punctures bearing fine scales; striae deep. 

 Scutellum rounded, 0.06 by 0.06 mm., with slight median furrow. 

 Front femora 3.0 to 3.5 times as long as wide. Claws with moderate 

 basal tooth. 



Special male characters: Three pairs of tibiae mucronate, tibia 1 

 with minute, simple mucro; tibiae 2 and 3 with larger, subdentate 

 mucrones. 



Material examined: Type, male (USNM), Montana, and 30 

 specimens. 



Known distribution: 



United States: Montana: Custer Co. (USNM). 



Canada: Manitoba: Aweme, September 20, N. Criddle, June 9 and July 10, 

 R. M. White (CNC). 



Remarks: Material in the U. S. National Museum was taken from 

 an ovary of Psoralea esculenta and material in the Canadian National 

 Collection is associated with the same plant. 



Apion {Trichapion) confertum Smith 



Figure 19,A;-m 



A-pion confertum Smith, Trans. Amer. Ent. Soc, vol. 11, p. 63, 1884.— Fall, 

 Trans. Amer. Ent. Soc, vol. 25, p. 154, 1898. — Blatchley and Leng, Rhyncho- 

 phora or weevils of northeastern America, p. 82, 1916, 



Description: Length, 2.3 to 2.5 mm. 



Moderately robust. Black; pubescence white, sparse, moderately 

 fine, slightly coarser and more conspicuous ventrally. Male beak 

 about as long as head and prothorax combined, two-sevenths longer 

 than prothorax; slightly, evenly curved; attenuate from laterally 

 expanded antennal insertion to apical fourth; basal two-thirds dull, 



