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New Ichneumon-flies parasitic on the Hemlock Sawfly (Neodiprion tsugae Middleton)


, : New Ichneumon-flies parasitic on the Hemlock Sawfly (Neodiprion tsugae Middleton). J. Wash. Acad. Sci, Menasha, Wis., 29: 9, 391-402

The new Ichneumonids described in this paper from Neodiprion tsugae, Middleton, in Oregon are Habrocryptus (Ischnus) oregonensis, Spilocryptus neodiprionis, Microcryptus (Aptesis) tsugae and Lamachus Oregon, which were primary parasites, Thysiotorus latifrons and Panargyrops areolaris, which were probably secondary, and Delo-merisia diprionis, which was also reared from N. tsugae from Queen Charlotte Island, British Columbia, Diprion similis, Htg., from Connecticut and Ontario, Gilpinia (D.) polytoma, Htg., from New Hampshire and two unidentified species of Neodiprion, one on Pinus rigida and P. resinosa in Maine and the other on P. banksiana in Quebec.

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