Canadian Forest Service Publications
Distinguishing adults of the winter moth, Operophtera brumata (L.), and bruce spanworm, O. bruceata (Hulst) (Lepidoptera: Geometridae) 1966. Eidt, D.C.; Embree, D.G.; Smith, C.C. The Canadian Entomologist 98: 258-261.
Issued by: Atlantic Forestry Centre
Catalog ID: 7065
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