346 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



bard and Schwarz (USNM); Dead Run to Turkey River, Apr. 30, 1922, W. L. 

 McAtee (USNM); Falls Church, May 22, 1921, E. A. Chapin (USNM); Great 

 Falls, June 12, 1918, L. L. Buchanan (USNM); Petersburg, June (USNM); 

 Rosslyn, Feb. 6, Chittenden (USNM); St. Elmo, Chittenden (USNM). West 

 Virginia: Berkley, Hubbard and Schwarz (USNM); Harper's Ferry, May 19, 

 Hubbard and Schwarz (USNM). 



Remarks: Blatchley and Leng (1916) record this species as occur- 

 ring on black locust with Apion nigrum Herbst. 



Apion {Trichapion) rufipenne Gyllenhal 



Figure 13,o,p 



Apion rufipenne Gyllenhal, in Schoenherr, Genera et species curculionidura, vol. 



5, p. 397, 1839.— Wagner, M6m. Soc. Ent. Belgique, vol. 19, p. 31, 1911. 

 Apion mfinulum Sharp, Biologia Centrali-Americana. Insecta, Coleoptera, Cur- 



cuHonidae: Apioninae, vol. 4, pt. 3, p. 69, pi. 2, fig. 24, 1890 — Wagner, Mem. 



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

 Apion semicastaneiim Faust, Stettiner Ent. Zeitschr., vol. 54, p. 320, 1893. — 



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



Description: Length, 2.38 to 2.62 mm.; width, 1.12 to 1.18 mm. 



Robust. Beak, antennae, head and prothorax black; elytra, abdo- 

 men, mesothorax and metathorax, coxae, and legs reddish. Pubes- 

 cence white, fine, dorsal surface nearly glabrous; apex of elytra, head 

 and beak sparsely clothed; denser on anterior surface of front coxae, 

 sides of mesothorax, and metepisternum. Beak of male as long as 

 head and prothorax combined, one-half longer than prothorax, slightly 

 curved; apical four-sevenths subcylindrical, not expanded laterally at 

 antennal insertion ; basal five-sevenths with coarse, rather close punc- 

 tures bearing scales; apical region smoother, bare; dorsal surface with 

 sparse, shallower punctures. Beak of female longer than head and 

 prothorax combined, four-fifths longer than prothorax, slightly, evenly 

 curved; subcylindrical, slightly attenuate distad of antennal insertion; 

 basal fifth with sparse pubescence, moderate punctures; apical region 

 finely, spareely punctured. Antennae inserted at basal fifth of beak, 

 of male at distance from eye equal to width of frons; first segment 

 slightly shorter than next three; second segment shorter than next 

 two; club 0.30 by 0.11 mm. Eyes m.oderately prominent; frons wider 

 than dorsal tip of beak, flat medially. 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 

 slightly distad of middle, thence rounded to apex which is not con- 

 stricted; in profile dorsal surface moderately convex; punctation 

 shallow, moderatel37^ sparse but irregularly placed; basal fovea lacking. 

 Elytra at humeri two-fifths wider than prothorax at base, 2.8 times 

 as long as prothorax, length to width as 13 : 10; intervals flat, three 

 to four times wider than punctures marking striae, nearly impunctate; 



