328 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



fourths sparsely punctate and pubescent, apical fourth smoother and 

 shining. Antennae inserted at distance from eye equal to width of 

 frons, at basal fifth of beak; first segment one-half longer than second, 

 shorter than next two; second segment slightly longer than third; 

 club 0.17 by 0.09 mm. Eyes moderately prominent; frons moderately 

 wide, with two rows of punctures on either side of wide, slightly con- 

 cave median area. Pro thorax at base one-third wider than long, mid- 

 dle slightly narrower than base, apex two-thirds as wide as base; sides 

 expanded laterally at base, nearly parallel to middle, rounded to con- 

 stricted apex; in profile dorsal surface slightly, evenly convex; puncta- 

 tion 0.03 mm. in diameter, shallow, interspaces less than diameter of 

 punctures; basal fovea round, moderately deep. Elytra at humeri 

 one-fourth wider than pro thorax at base, about 2.5 times as long as 

 prothorax, length to width as 9 : 7 ; intervals more than twice as wide 

 as striae, moderately convex, smooth, with two rows of punctures 

 bearing fine scales; striae deep, fine. Scutellum triangular, as wide as 

 long, about 0.06 by 0.06 mm., with slight median furrow. Front 

 femora about three times as long as wide. Claws with large, acute 

 basal tooth. 



Special male characters: Tibiae 2 and 3 armed with moderately 

 long mucrones which at base are in line with the long axis of the tibiae 

 and curve out laterally in apical half, mucrones angulate ventrally. 



Material examined: One male determined b}^ Hans Wagner. 



Known distribution: 



Mexico: Tabasco: Teapa. 

 Guatemala: San Ger6nimo (BMNH). 

 Nicaragua: Managua (Solari Collection). 

 Panama: "San Felice" (BMNH). 



Apion (Trichapion) hadromerum Wagner 



Figure 11, d,h,l 



Apion (Trichapion) hadromerum Wagner, Arch. Naturg. Berlin, vol. 78, p. 105, 

 1912. 



Description: Length, 1.8 to 2.0 mm. 



Moderately robust. Black; pubescence conspicuous, fine, on dor- 

 sal surface in part yellowish, sparse; coarser, white laterally, on head 

 and base of beak, and at small spot at base of elytral interval 3. Male 

 beak four-fifths as long as head and prothorax, nearly straight ; moder- 

 ately expanded ventrally at antennal msertion, attenuating to apex; 

 punctured and pubescent in basal three-fourths, apex, smooth, shining; 

 with dorsomedian narrow carina in basal three-fourths. Antennae in- 

 serted at distance from eye one-fourth greater than width of frons, 

 slightly distad of basal third; first segment shorter than next two, 

 second segment equal to third, club 0.18 by 0.08 mm. Eyes promi- 



