286 U. S. NATIONAL MUSEUM BULLETIN 216 



Berthierville, Cross Point on the Gaspe Peninsula, Great Whale 

 River, Hemmingford, Hull, Aylmer, and Rupert House); Rhode 

 Island (Westerly); Saskatchewan (Indian Head, La Plonge Lake, 

 and Waskesiu Lake in Prince Albert National Park) ; Utah (Park 

 City, Petersboro, and Wellsville) ; Vermont (Laurel Lake near Jack- 

 sonville); Washington (Anacortes, Ashford, Bellingham, Blue Mts., 

 Clark Co., Copalis Beach, Easton, Elbe, Forks, Godman Spring at 

 6,000 ft., Greeuwater River, Ilwaco, Loon Lake, Mount Rainier at 

 2,700, 2,900, 4,700, 5,000, and 5,300 ft., Montesano, Mount Yakima, 

 Naselle, Northport, Pullman, San Juan Island, Sappho, Seattle, 

 Shelton, Snoqualmie Pass, South Bellingham, South Bend, Weiser 

 Lake in Whatcom Co., Wenatchee, Westport, and Yelm); Wyoming 

 (Careyhurst, Mammoth Hot Springs in Yellowstone Park, Mts. 

 near Sheridan, Snake River, and West Yellowstone) ; and Yukon 

 Territory (Canyon Creek and Snag). 



Collection dates are throughout the growing season, with no par- 

 ticular peak of abundance. We have found the species out with the 

 earliest growth of herbage along the stream bottoms in spring, just as 

 tree buds were beginning to swell, and Foxlee has collected it in num- 

 bers in late fall at Robson, B. C. The earliest and latest dates of 

 capture are April 13 at Berkeley, Calif., and October 28 at Robson, 

 B. C. The usual habitat is around northern coniferous trees (Picea, 

 Abies, Tsuga, Pseudotsuga, etc.), where it is often very common. 

 Adults fly around the tips of the branches and "inside" the trees from 

 about one meter to several meters height, probably higher also but 

 observations above four meters are difficult. 



The hosts include many small Lepidoptera on various trees and 

 shrubs, particularly on Coniferae. Rearing records are as follows: 

 11 rearings or series of rearings from Acleris variana, 1 from lAncylis 

 comptana, 2 from Anthophila pariana, 8 from Archips argyrospilus, 

 3 from A. rosanus, 1 from Argyrotaenia sp. on Pinus contorta, 1 from 

 Corcina quercana, 2 from Carpocapsa pomonella, 10 from Choristoneura 

 fumiferana, 1 from G. pinus, 2 from Cnephasia longana, 2 from De- 

 pressaria sp., 1 from Dioryctria reniculella, 1 from Euceratia castella, 

 1 from Oracilaria sp. on leaf of Rosa, 3 from Lambdina fiscellaria 

 lugubrosa, 1 from Malacosoma disstria, 1 from Malaccsoma sp., 1 

 from Nepytia phantasmaria, 1 from Pteronea sp. on Rubus, 1 from 

 Platyptilia sp., 1 from Pterophoridae, 3 from Rhyacionia buoliana, 3 

 from Spilonota ocellana, 1 from Taniva albolineana, 1 from a bud 

 moth, 1 from Pseudotsuga taxifolia infested with "bud moth," 1 from 

 a leaf roller, 1 from Diptera, 3 from Neodiprion tsugae, 1 from 

 Neodiprion on Tsuga, and 1 from Neodiprion sp. 



This species is transcontinental in the Canadian and Hudsonian 

 zones, with some overlap into the Transition and Arctic areas. It is 



