ICHNEUMON-FLIES, PART 2 1 EPHIALTINAE 43 



long, with sparse, suberased punctures, and with dorsomedial carinae 

 extending nearly to apex; nervellus rather strongly inclivous; legs 

 slender, the hind coxa in greatest depth barely 0.66 times as deep as 

 long; abdomen slender, more than 1.5 times as long as head and thorax 

 together; tergite 1 very small, at apex scarcely 0.5 times as wide as 

 apex of tergite 2; tergites 2-5 with large, very dense punctures except 

 on polished apices; sheath as long as body; ovipositor slender, with 

 a weak nodus and with basalmost ridge on apex of lower valve very 

 strongly oblique. 



Black. Clypeus entirely and mandible toward apex, piceous; 

 antenna black, with scape at apex and pedicel beneath, piceous; 

 palpi pale fuscous; tegula very pale yellowish; hind corner of pronotum 

 without a pale spot; coxae rufopiceous to black; hind leg with tro- 

 chanter piceous at base and whitish beyond, femur reddish, tibia 

 fuscous with a paler basal annulus and an elongate paler spot above 

 at middle, tarsus fuscous with an obscure paler annulus at base of 

 first segment; front and middle legs with same color pattern but with 

 colors paler and less contrasting, especially on front legs. 



Specimens: Redescribed from the holotype and allotype from 

 Colestin, Oreg., both of which were reared from Barbara colfaxiana 

 siskiyouana Kearfott in cones of Abies concolor. One male paratype 

 (Cushman's paratype b) from Siskiyou, Oreg., reared from cones of 

 Abies concolor belongs to this species, as does also a male from Aberdeen 

 Mt., B. C, reared from an anthomyid larva, Sept. 9, 1955, under 

 Forest Insect Survey No. B. C. 2337-01 (Ottawa). 



Host: Barbara colfaxiana siskiyouana Kearfott. 



3. Scambus (Scambus) longicorpus Walley, new species 



This is a rather variable species that closely resembles ephialtoides. 

 It differs from ephialtoides, in the male, in lacking the excision of the 

 front femur, and in the female in the slightly shorter ovipositor 

 sheath and the much less densely punctate abdomen. It agrees with 

 ephialtoides and differs from protentus in details of structure of the 

 apex of the ovipositor. 



The species is divided into two subspecies which differ as indicated 

 in the key: 



1. Male with scape mostly or entirely yellowish beneath; female with maxillary 

 palpus yellowish and middle and hind femora pale reddish to reddish 

 brown; food plant of host: Picca canadensis; range: Ontario, Saskatchewan, 

 Alberta, and Alaska, east of the Continental Divide. 



3a. longicorpus longicorpus, new subspecies 



Male with scape dark brownish or blackish beneath; female with maxillary 



palpus fuscous and middle and hind femora rufopiceous to black; food plants 



of host: Picea sitkensis and P. engelmanni; range: Wyoming, Montana, 



California, Oregon, and British Columbia, west of the Continental Divide. 



3b. longicorpus occidentalis, new subspecies 



