Canada. Leaf-mininers of Canada. 6 off-prints.
Canada. Leaf-mininers of Canada. 6 off-prints.
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Lepidoptera – Schmetterlinge Canada. Leaf-mininers of Canada. 6 off-prints. Annotated keys to some nearctic leaf-mining Lepidoptera on conifers. New Canadian species of leaf-mining lepidoptera of conifers. A new species of Parapandemis Obraztsov, a genus new to Canada. (Tortricidae) A new species of Zeiraphera Treitschke from British Columbia (Tortricidae). A new nearctic species of Exoteleia Wallengren (Gelechiidae) on pine. A new species of Epintia Hübner from British Columbia (Oleuthreutidae)
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