ICHNEUMON-FLIES, PART 2! EPHIALTTNAE 95 



June 20, 1951, Mason and McGillis (Ottawa). 9, Norman Wells, 

 N.W.T., July 10, 1949, W. R. M. Mason (Ottawa). 



This is a species of Siberia, Alaska, and northwestern Canada. 



5. Apistephialtes nucicola (Cushnian), new combination 



Figure 330,1; 336 



Calliephialies nucicola Cushman, 1931, Proc. IT. S. Nat. Mus., vol. 79, art. 14 F 



p. 5; d\ 9. Type: 9, Saticoy, Calif. (Washington). 

 Biology: Barrett, 1932, Journ. Econ. Ent., vol. 25, p. 1111. 



Front wing of male 4.0 to 5.0 mm. long, of female 4.6 to 7.5 mm. 

 long; propodeum entirely smooth and polished, its punctures separated 

 by about 1.5 their diameter; male subgenital plate and the preceding 

 sternite as in figure 330,1; apex of male clasper elongate (fig. 336); 

 male eighth and ninth tergites not fused; ovipositor sheath about 

 1.9 as long as front wing; tip of ovipositor as in A. variatipes (fig. 329,f). 



Male: Black. Crypeus and mandible dusky ferruginous; scape 

 in front except at extreme base, pedicel in front, palpi, tegula, cuneate 

 mark on upper margin of pronotum extending from hind corner 

 about 0.7 the distance to notaulus, front coxa, and front and middle 

 trochanters, white; middle coxa white, tinged with fulvous basally; 

 front and middle tibiae white, more or less tinged with fulvous ; front 

 tarsus white, its apex tinged with fulvous; middle tarsus whitish, 

 brownish apically; front and middle femora fulvous, their apex and 

 more or less of front face white; hind coxa and femur fulvous, the 

 apex of the femur white; hind first trochanter fulvous basally, white 

 apically: hind second trochanter white; hind tibia mostly whitish, its 

 apex fuscous, the fuscous restricted to the apex dorsally but laterally 

 extending basad for about 0.4 the length of the tibia; hind tarsus 

 stramineous, each segment brownish apically, the last segment en- 

 tirely brown. 



Female : Black. Clypeus and mandible dull ferruginous ; pedicel in 

 front and apical margin of scape in front, brownish; maxillary palpus 

 white; labial palpus stramineous; tegula and cuneate mark on upper 

 margin of pronotum white, the white mark extending from hind corner 

 about 0.65 the distance to notaulus; front and middle legs fulvous, 

 their trochanters and upper edge of their tibiae whitish; hind coxa, 

 first trochanter, and femur fulvous, the femur with a faintly infuscate 

 subapical band and its extreme apex stramineous; hind tibia infuscate 

 below, whitish above, its apex infuscate and its whitish area with a 

 subbasal constriction; hind tarsus brown, fuscous apically. 



Specimens (76 cf, 1509): From Arizona (Parker Creek and Pocket 

 Creek, both hi the Sierra Ancha); British Columbia (Nanaimo and 

 Robson); California (Alameda Co., Black Point in Marin Co., Carmel, 

 Catalina Island, Fairfax, Fish Camp, Gasquet, Giant Forest, Glen 



