ICHNEUMON-FLIES, PART 2'. EPHIALTINAE 165 



Medina Co., Ohio; May 10 at Lower Lake, Lake Co., Calif.; May 15 

 at Ottawa, Ont.; May 23 and 30 at Roxborough, Pa.; May 26 at 

 Madison, Wis.; May 30 in Leelanau Co., Mich, and in Sanilac Co., 

 Mich.; October 17 at Hull, Que.; October 19 and 25 and November 1 

 and 2 at Charlottesville, Va.; October 21 at Mille Lacs, Minn.; Octo- 

 ber 27 at Mayo, Md.; November 1 at Falls Church, Va.; and No- 

 vember 9 in Knox Co., Tenn. 



Rearing records are as follows : 1 reared from Acrobasis betulella, 1 

 from Anacampsis sp., 3 from Archips argyrospilus, 2 from Argyro- 

 taenia pinatubana, 1 from Choristoneura fumiferana, 1 from C. rosa- 

 ceana?, 2 from Episimus argutanus, 1 from Oracillaria rhoifoliella, 1 

 from cocoons of Malacosoma disstria, 1 from Pandemis limitata, 3 

 from Pantographa limata, 14 from Spilonota ocellana, 1 from Zotheca 

 tranquilla, 2 from noctuids, 1 from a tortricid, 1 from a microlepidop- 

 teran on Cornus, 1 from a leaf roller on Fraxinus, and 1 from a "brown 

 scavenger lepidopteran." In our own collecting, we have found the 

 species moderately common among deciduous trees and shrubs. 



This species is transcontinental in the Canadian, Transition, and 

 Upper Austral zones, where there are deciduous forests. It is adult 

 mostly in summer and early fall. It parasitizes a large variety of 

 smaller Lepidoptera on deciduous trees and bushes whose cocoons are 

 among the foliage. 



9. Genus Iseropus 



Figure 289,b 



Iseropus Foerster, 1868, Verh. Naturh. Ver. Rheinlande, vol. 25, p. 164. Type: 

 {Ichneumon graminellae Schrank) =stercora(or Fabricius; included by Wold- 

 stedt, 1877. 



Front wing 4.5 to 8.5 mm. long; body moderately long and slender; 

 clypeus and more or less of face of male white ; clypeus of female black 

 to fulvous; face of female black; frons of both sexes entirely black; 

 clypeus convex, its apex impressed, its apical margin with a median 

 notch; occipital carina complete, with a moderate dip on the midline; 

 hairs on mesoscutum moderately dense, evenly distributed; submeta- 

 pleural carina complete; propodeum of moderate length, rather flat, 

 with median longitudinal carinae; areolet sub triangular, about as long 

 as high, receiving second recurrent vein at or just beyond the middle; 

 nervellus broken usually above the middle, but broken at the middle 

 in the Palaearctic /. inquisitor and /. hakonensis; first tergite rather 

 short and wide, its lateral and median longitudinal carinae strong; 

 basolateral oblique grooves in second tergite moderately strong; third 

 and fourth tergites with distinct tubercles, their impunctate apical 

 band occupying about 0.2 their length; female subgenital plate com- 

 pletely sclerotized; ovipositor straight, compressed, its apex as in 



