SUBGENUS TRICHAPION KISSINGER 



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Figure 16. — a-d, Apion mediocre Sharp: a, entire dorsal view of male; h, lateral view of 

 head and prothorax of male; c, lateral view of head and prothorax of female; d, mucro of 

 tibia 3 of male, e, f, A. oblitum Smith: e, lateral view of head and prothorax of male; 

 /, mucro of tibia 3 of male. Line equals 0.50 mm. 



four-fifths shining, glabrous, very finely, sparsely punctate. Antennae 

 inserted at distance from eye slightly less than width of frons, at 

 basal fifth of beak; first segment slightly shorter than next three; 

 second segment shorter than next two; club 0.27 by 0.09 mm. Eyes 

 moderately prominent; frons narrow, about as wide as dorsal tip 

 of beak, with slight median depression and a lateral row of coalesced 

 punctures. Prothorax at base one-fourth wider than long, middle 

 slightly narrower than base, apex three-fourths as wide as base; sides 

 slightly expanded laterally at base, slightly diverging to middle, 

 rounded to constricted apex; in profile dorsal surface slightly, evenly 

 arcuate; punctation moderately deep, 0.03 mm. in diameter, inter- 

 spaces narrower than diameter of punctures; basal fovea shallow, 

 linear, extending one-third length of prothorax. Elytra at humeri 

 two-fifths wider than prothorax at base, 2.7 times as long as prothorax, 

 length to width as 4:3; intervals twice as wide as striae, convex, 

 with one row of fine scales. Scutellum rounded, 0.06 by 0.06 mm., 

 with slight median furrow. Front femora slightly more than four 

 times as long as wide. Claws with acute basal tooth. 



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

 with minute mucro, tibiae 2 and 3 with long, dentate mucrones. 



