ICHNEUMON-FLIES, PART 21 EPHIALTINAE 367 



on remaining sternites less than twice as long as wide; ovipositor 

 deeper than that of any other Delomerista species, its apex abruptly 

 curved dorsally; sheaths a little less than two-thirds length of abdomen. 



Black except the following: All femora, middle and hind coxae, 

 tegulae, tips of ovipositor sheaths, mandibles (except teeth), clypeus, 

 malar space, thin line at apex of segments 4-7, brownish or reddish 

 brown; and mandibles, malar space, inner surfaces of front femora 

 and tibiae, apices of middle femora, dorsolateral corner of pronotum, 

 and annulus at base of hind tibia, pale or whitish. 



Described from holotype female in U. S. National Museum Collec- 

 tion under Type No. 64090. 



Type locality: Cameron Bay, Great Bear Lake, N. W. T. The 

 two para types are from Waskesiu, Sask., and Great Whale River, 

 Que. Paratypes are in the collection of H. K. Townes and in the 

 Canadian National Collection. 



Further distribution: Alaska; Canada: Alberta, British Columbia, 

 Northwest Territories, Ontario, Quebec; United States: Arizona, 

 California, Colorado, New York, Pennsylvania. 



Host: Unknown. 



Variations: Ovipositor depth from barely wider to more than ){ 

 wider than widest part of front tibia; length of ovipositor sheaths 

 from % to nearly % length of abdomen; antennal segments varying in 

 number from 28 to 32; front coxae blackish or reddish; outside of 

 front femora, and front and middle tibiae, from brownish or reddish 

 brown to dark brown or blackish; hind tibiae black, except for pale 

 basal annulus, to blackish with pale area extending apically on ventral 

 side. 



While I believe all these specimens are the same species, I have 

 hesitated to consider them all paratypes without more knowledge of 

 the biology of the species. 



3. Delomerista japonica Cushman 



Figure 313,k 



Delomerista japonica Cushman, 1937, Ins. Matsumurana, vol. 12, pp. 35-36; o", 

 9 . Type: 9 , Nagawa-Mura, Nagano-Ken, Japan (Washington). 



Delomerista diprionis Cushman, 1939, Journ. Washington Acad. Sci., vol. 29, 

 pp. 398-400; cf, 9- New synonymy. Type: 9 , Oakville, Ontario, Canada 

 (Washington). 



The original descriptions are adequate. The differences in the two 

 descriptions are merely intraspecific and in the additional material at 

 hand those differences can be found in specimens from either geo- 

 graphic region. The species varies in length from 5.5 mm. to 11 mm. 



It is possible that japonica comprises two incipient species: one 

 parasitizing Diprion spp. and the other Neodiprion spp. The differ- 



