52 



U. S. NATIONAL MUSEUM BULLETIN 216 



femur about 4.1 times as long as deep; tergite 1 of abdomen about 1.5 

 times as long as wide; clasper broadly rounded at apex. 



Black. Scape and pedicel beneath, palpi, tegula, hind angle of 

 pronotum, front and middle legs (except for slight reddish suffusions 

 on femora and tibiae) and hind trochanter, whitish; hind tibia whitish, 

 with narrow, subbasal and broad, apical fuscous annuli; apices of 

 front and middle tarsi, and hind tarsus except bases of first two seg- 

 ments, fuscous. 



Female: Front wing about 6.0 mm. long; antenna with 23 segments; 

 temple and thorax as in male; propodeum with dorsomedial carinae 

 on basal 0.66; sides of propodeum rather densely, and dorsal surface 

 more sparsely, punctate; hind femur about 3.6 times as long as deep; 

 tergite 1 of abdomen slightly longer than wide; tergites 2-7 rather 

 densely punctate except on apices; sheath 0.4 times as long as abdo- 

 men; ovipositor rather strongly compressed and with a distinct nodus. 



Differs in color from male principally in the more uniformly reddish 

 front and middle legs, which lack paler markings, except the tibiae, on 

 which the pattern of the hind tibia is faintly repeated; also differs in 

 having the palpi more or less dusky, the scape and pedicel blackish 

 beneath, and the stigma brownish with darker margins. 



Type: 9, Robson, B. C, June 17, 1950, H. R. Foxlee (Ottawa, No. 

 6753, in Canadian National Collection). 



Paratypes: 9, Banff, Alta, July 2, 1949, E. H. Strickland (Townes). 

 29, Edmonton, Alta., July 16 and Aug. 29, 1948, E. H. Strickland 

 (Townes). <?, Liilooet, B. C, Oct. 2, 1932, A. W. A. Phair (Ottawa). 

 9, Nanaimo Biological Station, B. C, June 25, 1920, E. C. Van Dyke 

 (San Francisco), cf, reared from Zelleria haimbachi Busck on Pinus 

 contorta, Richmond, B. C, Aug. 26, 1954, J. H. McLeod (Ottawa). 

 3d 1 , 49, Robson, B. C, Apr. 23, Aug. 8 to 24 and 26 to 31, 1949, May 



Figures 16, 17. — Localities: 16 (left), Scambus (Scambus) imparls; 17 (right), 



S. (S.) alrocoxalis. 



