NO. 2340. TRIBE EPHIALTINI OF THE ICHNEUMONINAE—CUSHMAN. 343 



The hosts of this species as shown by the rearings are Evetria, sp; 

 (probably taxifoiella), in cones of Pseudotsuga taxifolia at Yreka, 

 California (types of evetriae, Hopkins No. 11415&); Evetria taxi- 

 foliella Busck in cones of Pseudotsuga taxifolia (Ashland, Oregon, 

 Hopkins Nos. lOSlihc, 1 320966 ^-^-^ Colestin, Oregon, Hopkins No. 

 12535^; Missoula, Montana, Hopkins No. 10896f/); Evetria sisMyouana 

 Busck in cones of Pseudotsuga taxifolia (Ashland, Oregon, Hopkins 

 No. 125106); Evetria sislciyouana Busck in cones of Abies concolor 

 (Ashland, Oregon, Hopkins No. 12529^2); Pinipestis zimmermanni 

 Grote in twigs of Pinus ponderosa at Camas, Montana, Hopkins No. 

 11528 (type of plesia); and Pinipestis camhiicola Dyar on same 

 host tree on the Flathead Reservation, Montana, Hopkins No. 

 12565a. 



EPHIALTES (ITOPLECTIS) BEHRENSH (Cresson). 



Pimpla behrensii Cresson, Proc. Acad. Nat. Sci. Phila., 1878, p. 377, female, 

 male. Type, Acad. Nat. Sci. Phila., No. 1424, female. 



Discussion based on homotype (Viereck), 14 other females, and 8 

 males. 



This species is the American prototype of the genotype, maculator 

 (Fabricius), differing from that species principally in having the 

 basal joint of the trochanters red instead of black, the legs some- 

 what less ornately colored, the antennae darker, the pubescence of 

 the thorax silvery rather than cinereous, and the ovipositor shorter. 

 It is very distinct from all other American species by the color of 

 the abdomen, which is black medially and red laterally, with the 

 tergites narrowly yellowish at apex. 



Clypeus broadly rounded at apex; malar space half as long as basal 

 width of mandible; eyes deeply emarginate within; face and vertex 

 equal in width; antennae about two-thirds as long as body, very 

 slightly attenuate at base, the lower margins of their foramina at 

 middle of eye; front shallow, ruguloso-punctate medially; diameter 

 of lateral ocellus much longer than ocell-ocular line; notauli barely 

 impressed; propodeum polished medially and posteriorly, otherwise 

 densely punctate; spiracle nearly round; first tergite with dorsal 

 carinae strong; ovipositor barely a fourth as long as abdomen; all 

 coxae black, reddish at apex; all tibiae with at least a trace of an- 

 nulation; all joints of hind tarsi except fourth white at base; antennae 

 slightly paler beneath, especially toward apex. 



The specimens vary very little in size, females ranging from 9 mm. 

 to 10.5 mm. and males from 7.5 mm. to 9 mm. in length. 



The type series and all the National Museum specimens are from 

 California, where many of them were reared from pupae of Phry- 

 ganidia califomica, which is apparently the only known h()st. 



