SUBGENUS TRICHAPION — ^KISSINGER 303 



Known distribution: 



United States: Nebraska: No exact locality (MCZ), Platte River southeast of 

 Grand Isle, June 21, 1953, B. and B. Valentine (BDV). Colorado: Boulder, 

 T. D. A. Cockerell (MCZ). Oklahoma (AMNH). 



Apion {Trichapion) novelliiin Fall 



Apio?i novellum Fall, Trans. Amer. Ent. Soc, vol. 25, p. 144, pi. 4, fig. 19, 1898. 



Description: Length, 1.50 mm.; width, 0.75 mm. 



Moderately robust. Black; pubescence white, moderately fine, con- 

 spicuous, much coarser and scale-like on sides of prothorax, meso- 

 thorax and metathorax. Male beak slightly shorter than head and 

 prothorax combined, one-thu'd longer than prothorax, moderately, 

 evenly curved; slightly expanded laterally and ventrally at antennal 

 insertion, attenuate to apical third which is nearly cylindrical; basal 

 two-thu-ds sparsely punctured and pubescent; apical third sm.oother, 

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

 width of frons, at basal one-fourth of beak; first segment equals next 

 two, second segment slightl}^ longer than third, club 0.15 by 0.06 mm. 

 E^^es moderately prominent; frons wider than dorsal tip of beak. 

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

 base, apex three-fourths as wide as base, sides beyond basal lateral 

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

 profile dorsal surface nearly fiat; punctation moderately deep, 0.03 

 mm. in diameter, interspaces less than diaro.eter of punctures; basal 

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

 at base; 2.5 tim.es as long as prothorax, length to width as 7.5 : 6 ; inter- 

 vals m.oderately convex, twice as wide as striae, with, one row of scales 

 and with minute transverse rugae; striae deep, fine. Scutellum trian- 

 gular, 0.06 by 0.04 mm., with slight median furrow. Front femora 3.5 

 times long as wide. Claws with acute basal tooth. 



Special male characters: Tibia 2 armed with a long, fine mucro 

 which is turned inward in apical half, tibia 3 armed with a long, 

 straight, nearly sim.ple mucro, tibia 1 with long, narrow, flattened 

 polished area on anterior inner surface; area shines with silky luster 

 due to extremely fine, densely placed striations. 



Female not available for study. 



Types: I hereby designate the lectotype of this species as the male 

 specimen in the Fall Collection labeled Washington, D. C. (MCZ 

 25 110). A CO type with the same data is in the U. S. National Museum 

 (USNM 4236). 



Material examined: Lectotypo, cotype, and one specimen. 



Known distribution: 



United States: District of Columbia. Tennessee: East Ridge, Chapin 

 Sanctuary, May 8, 1952, C. Peck (CNC). 



