58 U. S. NATIONAL MUSEUM BULLETIN 216 



Type: 9, southern New Jersey, 1895, Chas. Liebeck (Washington, 

 USNM 63612). 



Paratypes: 9, Steamboat Springs, Colo., July, C. F. Baker (Wash- 

 ington). d\ reared from Tetralopha sp. on Fagus, Bar Harbor, Maine, 

 host collected Sept. 10, 1945, parasite emerged Mar. 27, 1946 (Wash- 

 ington). 9, Takoma Park, Md., May 31, 1942, H. and M. Townes 

 (Townes). tf, Fall River, Mass., July 3, 1908, N. S. Easton (Cam- 

 bridge). d\ Bemus Point, N. Y., June 19, 1937, H. Townes (Townes). 

 9, Heart Lake in Essex Co., N. Y., June 28, 1940, H. Dietrich (Ithaca). 

 d\ Mattituck, N. Y., Aug. 10, 1946, Roy Lathan (Washington), 

 d", reared from Psilocorsis fletcherella, Deux Rivieres, Ont., 1945 

 (Ottawa). 9, Swansea near Toronto, Ont., July 30, 1938, H. S. 

 Parish (Townes) . 6* , reared from Psilocorsis fletcherella, Temiskaming, 

 Ont., 1945 (Ottawa). 9, Aylmer, Que., May 18, 1934, G. S. Walley 

 (Ottawa). 2d 1 , Hull, Que., May 30 and 31, 1903 (Ottawa). 9, no 

 data (Ottawa). 



This species is widespread in the Transition zone from the Atlantic 

 Coast to Colorado. 



22. Trieces onitis (Davis) 



Figure 179,e 



Chorinaeus onitis Davis, 1897, Trans. Amer. Ent. Soc, vol. 24, p. 210; d% 9 . 

 Lectotype: 9 Mount Washington, N. H. (Philadelphia). 



Front wing 4.8 to 5.5 mm. long; face 1.89 as wide as high in male, 

 1.91 to 2.25 as wide as high in female; face in profile strongly bulged 

 above clypeus; middle half of apical margin of clypeus strongly 

 concave; flagellum of the single male specimens broken, in female 

 specimens with about 30 segments; front spur of middle tibia about 

 0.47 as long as hind spur; second segment of middle tarsus of male 2.0 

 as long as wide, of female about 1.05 as long as wide. 



Male: Black. Face, clypeus, cheek, lower part of temple, large 

 ventrolateral area on frons, mouth parts, front and middle legs except 

 for fulvous tinge on femora behind, apex of hind coxa beneath, tinge 

 on hind trochanters, tinge on apex of hind femur, basal 0.25 of hind 

 tibia, and tibial spurs, pale yellow; antenna brown, pale yellow beneath 

 but shading to light brown toward apex; tegula yellow, reddish brown 

 apically; hind coxa blackish except apically beneath; hind leg beyond 

 coxa fulvous except where described as yellow. 



Female: Black. Face, clypeus, cheek, lower part of temple, large 

 ventrolateral area on frons, mouth parts except mandible, under side 

 of scape and pedicel, apex of femora, and basal 0.2 of tibiae, pale 

 yellow; mandible light brown to dark brown; flagellum reddish brown, 

 paler below; tegula dark brown; legs fulvous except where described 



