ICHNEUMON-FLIES, PART 2\ XORIDINAE 475 



over, but somewhat sparser below; metapleurum with sharp, medium- 

 sized, subadjacent punctures that are more or less confluent with and 

 obscured by irregularly oblique wrinkles; petiolar area about 0.45 as 

 long as combined areola and basal area; propodeal teeth about 0.5 

 as long as their basal width ; hairs in first lateral area moderately dense 

 to sparse; hind femur about 1.95 as long as deep, its punctures small, 

 sharp, dense, near the lower edge a little larger and sparser but still 

 rather dense; second segment of middle tarsus about 1.65 as long as 

 deep; fifth segment of hind tarsus about 1.28 as long as second; second 

 tergite subpolished, more or less rugulose and striate basally, its 

 punctures small, separated by about 2.5 the length of the hairs, 

 ovipositor sheath about 1.55 as long as front wing. 



Black. Mandible often stained with ferruginous; palpi brown; 

 labrum, legs and abdomen fulvoferruginous, the front and middle 

 tarsi weakly brownish, hind tarsus brown, and hind tibia somewhat 

 darkened apically; first abdominal segment more or less infuscate 

 basally; tegula blackish; wings with a brown tinge. 



The female is distinguished by its fulvoferruginous abdomen and 

 legs, sparsely punctate mesoscutum, trough of pronotum with trans- 

 verse ridges, and hind femur with rather dense punctures all over, not 

 hairless nor very sparsely punctate below. The male is unusual in 

 having the hind coxa mostly fuscous and the hind trochanters and 

 femur fulvous, though a safe determination requires consideration of 

 other characters, also. 



Specimens (34 cf, 369): From Alberta (Banff); British Columbia 

 (Hedley, Mount Revelstoke, Oliver, and Robson) ; Idaho (Cedar Mt. 

 near Moscow and Cornwall); and Washington (Blue Mt., Eagle Peak 

 on Mount Rainier, and Mount Rainier at 4,000 ft.). 



Dates of collections are rather evenly distributed from early spring 

 to early fall. Unusually early and late dates are: April 3 at Oliver, 

 B. C; April 25 at Robson, B. C; September 2 at Robson, B. C. ; and 

 September 6 at Banff, Alta. 



This species is in the Canadian zone of the mountains of north- 

 eastern United States and adjacent Canada. Adults occur from early 

 spring to early fall. 



17. Odontocolon dichrous (Rohwer) 



Odontomerus dichrous Rohwer, 1913, Proc. U. S. Nat. Mus., vol. 45, p. 361, 

 9. Type: 9, Longmire on Mount Rainier, Wash. (Washington). 



Male: Front wing 3.4 to 10.0 mm. long; first flagellar segment 

 about 1.25 as long as second; punctures on mesoscutum moderately 

 strong, separated by about 1.5 their diameter; propodeal teeth usually 

 about 0.6 as long as then basal width; punctures on hind femur rather 

 coarse and close, a little sparser ventrally, near the lower edge of femur 



