ICHNEUMON-FLIES — GELINAE : MESOSTENINI 



81 



Figure 29. — Localities for 

 Gambrus canadensis cana- 

 densis. 



second trochanter, femur, and tibia ferruginous, the apical 0.12 

 to 0.25 of femur fuscous, the tibia darkened apically, its apical 0.2 ± 

 fuscous; hind tarsus fuscous, its segments 2-4 and sometimes part of 

 segment 1, white; wings subhyaline; first abdominal segment ferrugi- 

 nous, more or less infuscate basally; tergites 2-4 ferruginous. Rarely 

 tergite 7 has a small median white spot and rarely the flagellum has 

 an obscure median whitish stripe above that covers several segments. 

 Males with the terminal white spot are from Bangor, Maine, and 

 Westerly, R.I. Males with the whitish mark on flagellum are from 

 Franconia and Mount Washington, N.H., from Mount Desert, 

 Mame, and from Go Home Bay, Ont. Sometimes segment 2 of the 

 male hind tarsus is more or less infuscate. 



Female: Black. Palpi fuscous; flagellum with an incomplete 

 white band that covers about 4 segments; tegula black; front coxa and 

 first trochanter entirely or largely' fuscous, sometimes mostly ferru- 

 ginous with some parts infuscate; front leg beyond second trochanter 

 and entire second leg, ferruginous, the middle tarsus weakly infuscate 

 apically; hind coxa, trochanters, and femur ferruginous, the apical 

 0.12 to 0.25 of the femur fuscous; hind tibia fusco ferruginous, darker 

 apically and at base; hind tarsus brown or fuscous, paler at the joints, 

 the third segment often white or partly white; wings famtly infuscate; 

 abdominal segments 1-3 ferruginous, the base of first segment fuscous; 

 tergite 7 with a moderately large median white spot, or in specimens 

 from the border of the range of the subspecies exareolatus the white 

 spot often small or absent. 



The cocoon is elliptic, of moderate length, thin but dense, and with 

 a felt of loose silk on the outside. The color ranges from white to gra}''- 

 brown. 



Specunens (286 c?, 2629): From Alaska (Mile 25 on Richardson 

 Hwy.); Alberta (near Rocky Mountain House); British Columbia 

 (Columbia on Carbonate River at 2,600 ft., Duncan, Miracle Beach 



