. Identification of parasites of the Douglas-fir tussock moth, based on adults, cocoons, and puparia. Douglas-fir tussock moth; Parasites West (U; S; ) Identification; Parasitic insects West (U; S; ) Identification. 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Torgersen, Torolf R. cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ); United States. Forest Service. cn. Portland, Or. : Pacific Nor
. Identification of parasites of the Douglas-fir tussock moth, based on adults, cocoons, and puparia. Douglas-fir tussock moth; Parasites West (U; S; ) Identification; Parasitic insects West (U; S; ) Identification. 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Torgersen, Torolf R. cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ); United States. Forest Service. cn. Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture, Forest Service
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