ICHNEUMON-FLIES, PART 2: EPHIALTINAE 



207 



their length; female subgenital plate completely but weakly sclero- 

 tized, or with a large median basal membranous area; ovipositor weakly 

 compressed, decurved but its apical part straight; ovipositor sheath 

 about 0.33 as long as front wing. 



This genus includes only the genotype, which is transcontinental 

 in the Canadian and Transition zones of North America, and an 

 undescribed species in Japan. 



1. Alophosternuin foliicola Cushman 



Figure 370 



Alophosternum foliicola Cushman, 1933, Proc. U. S. Nat. Mus., vol. 82, p. 8; 

 o", 9- Type: ?, Ashburnham, Mass. (Washington). 



Front wing 2.7 to 5.8 mm. long. Differs structurally from an 

 undescribed Japanese species in having the second recurrent nearer 

 the apex of the areolet, the first tergite broader, the hind tarsal claws 

 of the female with a basal lobe, and female subgenital plate with a 

 large median basal membranous area. 



Male: Black. Face, frons, cheek, clypeus, mouth parts, scape and 

 pedicel except above, lower part of propleurum and adjacent part of 

 pronotum, large hind corner of pronotum, tegula, subtegular ridge, 

 coxae, trochanters, and front and middle femora and tibiae, whitish; 

 flagellum fuscous, a little paler beneath, its basal few segments whitish 

 beneath; front tarsus whitish, its apex brownish; middle basitarsus 

 whitish, its apex brown; second to fourth segments of middle tarsus 

 brown ; fifth segment of middle tarsus brown, its basal half stramineous ; 

 hind femur pale fulvous; hind tibia white, with a narrow subbasal 

 and a broader apical fuscous band; hind tarsus infuscate, the basal 

 half of its first segment whitish and the basal half of its last segment 

 light brown; second to sixth tergites narrowly stramineous on apex, 

 the base of second tergite sometimes also narrowly stramineous. 



Figure 87. — Localities for 

 Alophosternum foliicola. 



