SUBGENUS TRICHAPION — KISSINGER 



287 



Figure 4. — a-c, Apion imitator Wagner: a, lateral view of head and prothorax of male; 

 b, dorsal view of head of male; c, mucro of tibia 3 of male, d-g, k, A. proclive LeConte: 

 d, lateral view of head and prothorax of male; e, lateral view of head and prothorax of 

 female; /, dorsal view of head of female; g, entire dorsal view of male, k, mucro of tibia 

 3 of male. A, A. adaetum, new species, mucro of tibia 3 of male, i, j, A. plectrocolum, 

 new species: i, mucro of tibia 2 of male; ;", mucro of tibia 3 of male. Line equals 0.50 

 mm. 



about one-third length of beak. Male antennae inserted at basal 

 fourth of beak at distance from eye one-half greater than width of 

 frons; first segment longer than next three, slightly shorter than next 

 four; second segment about equal to next two; club 0.21 by 0.08 mm. 

 Eyes large, prominent; frons slightly narrower than dorsal tip of 

 beak. Prothorax at base one-third wider than long, middle narrower 

 than base, apex two-thirds as wide as base; sides beyond basal lateral 

 expansion nearly parallel to middle, rounded to constricted apex; in 

 profile dorsal surface flat; punctation moderately deep, 0.03 mm. 

 in diameter, interspaces less than diameter of punctures, alutaceous; 



