350 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



tance from eye one-half greater than width of frons; first segment as 

 long as next three, second segment slightly longer than third, club 0.18 

 by 0.08 mm. Eyes very prominent; frons wider than dorsal tip of 

 beak, with a smooth, flat median area and one or two uTegular lateral 

 rows of punctures. Prothorax at base one-third wider than long, 

 middle slightly narrower than base, apex tliree-fourths as wide as base; 

 sides beyond slight basal lateral expansion parallel to middle, rounded 

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

 punctation deep, 0.03 mm. in diameter, interspaces m-egular, from 

 one-half as wide to equal to diameter of punctures; basal fovea shallow, 

 short. Elytra at humeri one-third wider than prothorax at base, 

 2.75 times as long as prothorax, length to width as 9 : 7; intervals 

 somewhat more than twice as wide as striae, flat, with one row of in- 

 conspicuous scales; striae fine, shallow. Scutellum triangular, 0.05 by 

 0.05 mm., not furcate. Front femora about 3.3 tmies as long as wide. 

 Claws with acute basal tooth. 



Material examined: Two females determined by Sharp. 



Known distribution: 



Panama: David (type, BMNH). 



Apion (Trichapion) bicolor Gerstaecker 



Figure 14,/,^ 



Apion bicolor Gerstaecker, Stettiner Ent. Zeitschr., vol. 15, p. 244, 1854. — Wagner, 



Mem. Soc. Ent. Belgique, vol. 19, p. 31, 1911. 

 Apion mandoni Wencker, Ann. Soc. Ent. France, vol. 3, p. 178, 1863. — Wagner, 



M6m. Soc. Ent. Belgique, vol. 19, p. 31, 1911. 

 Apion guatemalenum Sharp, Biologia Centrali-Americana. Insecta, Coleoptera, 



Curculionidae: Apioninae, vol. 4, pt. 3, p. 50, 1890. — Wagner, Mem. Soc. 



Ent. Belgique, vol. 19, p. 31, 1911. 

 Apion sagax Faust, Stettiner Ent. Zeitschr., vol. 54, p. 321, 1893. — Wagner, Mem. 



Soc. Ent. Belgique, vol. 19, p. 31, 1911. 



Description: Length, 1.88 to 2.06 mm. 



Moderately robust. Black; elytra and prothorax with strong 

 bronzy luster, base of antennae piceous ; pubescence on dorsal surface 

 of prothorax and elytra inconspicuous, very fine, white, coarser and 

 denser on sides of mesothorax and metathorax. Beak of male slender, 

 a little longer than head and prothorax combined, nine-tenths longer 

 than prothorax, moderately, evenly curved; not expanded at antennal 

 insertion, in lateral view basal fourth stout, parallel-sided, attenuate 

 to apical third which is nearly parallel-sided ; in dorsal view expanded 

 slightly at tip ; punctures arranged in rows, fine dorsall}^, coarser later- 

 ally, surface nearly polished, shining, sparsely pubescent in basal 

 third. Female beak long and slender, one-third longer than head and 

 prothorax combined, about twice as long as prothorax, strongly, 

 evenly curved; in lateral view slightly dilated beyond basal fourth, 



