298 XT. S. NATIONAL MUSEUM BULLETIN 216 



stramineous, a little darker apically; middle femur fulvous, whitish 

 apically in front and often light brown above; middle tibia fulvous or 

 brownish, with a premedian whitish band, in the male more or less 

 whitish in front; middle tarsus brown, the segments white basally 

 except that fourth segment is entirely dark; hind femur fulvous, its 

 apex more or less infuscate; hind tibia black with a broad submedian 

 band of white; hind tarsus black, the segments white basally except 

 that the fourth segment is entirely black; apex of tergites narrowly 

 margined with pale brown. 



This species shows close relationship with /. behrensii in the presence 

 of the notaulus, small acute tooth on front tarsal claws of female 

 (when this is present), and in several features of the leg coloration. 

 Superficially, however, it looks more like /. quadricingulata. We are 

 indebted to G. S. Walley for calling attention to this distinct new 

 species and for the loan of specimens. 



Type: 9, Poudre Lake at 11,000 ft., Rocky Mountain National 

 Park, Colo., Aug. 11, 1948, H., M., G., D., and J. Townes (Washing- 

 ton, USNM 63711). 



Paratypes (13 cf, 239): From Alaska (Fairbanks); Arizona (near 

 Alpine and Workman Creek in the Sierra Ancha); British Columbia 

 (Glacier Park and Walker Creek at Gun Lake); California (Mineral 

 King); Colorado (near Estes Park, Rabbit Ears Pass, and Rocky 

 Mountain National Park at Fall River Pass, at Poudre Lake, and at 

 Tundra Curves); Maine (Portage); New Brunswick (York Co.); 

 New Mexico (Cimarron at 9,500 and 10,000 ft.); Nova Scotia (St. 

 Peters); and Prince Edward Island (Brackley Beach in Canadian 

 National Park). 



Collection dates are from spring to late summer, the earlier and 

 later dates being: May 3, 6, and 8 at Workman Creek, Sierra Ancha, 

 Ariz.; May 24 near Alpine, Ariz.; June 12 near Estes Park, Colo.; 

 August 12 at 11,000 ft. in Rocky Mountain National Park, Colo.; 

 and August 23 and 25 at Cimarron, N. Mex. at 9,500 and 10,000 ft. 



Rearing records comprise 2 reared lots from Acleris variana, 2 from 

 Coleophora laricella, 1 from Recurvaria milleri, and 1 from a lepidop- 

 terous pupa. 



This species is transcontinental in the Hudsonian and Canadian 

 zones. It is adult from spring to late summer. 



7. Itoplectis fustiger, new species 



Figure 326,c 



Itoplectis clavicornis Townes, 1940, Ann Ent. Soc. America, vol. 33, p. 315. 

 Misdetermination of clavicornis Thomson, in part. 



Front wing 5.0 to 7.2 mm. long; temple almost flat, about 0.4 as 

 long as eye; face very narrow; cheek about 0.12 as long as basal width 



