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KEY TO ADULT MALES OF CONIFER-FEEDING SPECIES OF CHORISTONEURA LEDERER (LEPIDOPTERA: TORTRICIDAE) IN CANADA AND ALASKA

Published online by Cambridge University Press:  31 May 2012

P. T. Dang
P. T. Dang
Affiliation:
Canadian Forestry Service, c/o Biosystematics Research Institute, Agrkulture Canada, Ottawa K1A 0C6
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Abstract

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A key, based on morphological characters of adult males, separating six traditionally recognized conifer-feeding Choristoneura species, C. pinus Freeman, C. lambertiana (Busck), C. fumiferana (Clemens), C. occidentalis Freeman, C. biennis Freeman, and C. orae Freeman occurring in Canada and Alaska is provided and illustrated. The newly discovered morphological features, the aedeagus of C. fumiferana and C. pinus with a short apical spine and with many microscopic spicules on the distal half, are used to separate these two species from their western allies C. occidentalis, C. biennis and.C. orae.

Résumé

L'auteur fournit une clef de détermination illustrée basée sur les caractères morphologiques des adultes mâles pour séparer les six espèces du genre Choristoneura traditionnellement reconnues comme des ravageurs des conifères du Canada et de l'Alaska, C. pinus Freeman, C. lambertiana (Busck), C. fumiferana (Clemens), C. occidentalis Freeman, C. biennis Freeman et C. orae Freeman. Les nouveaux caractères morphologiques, soit l'édéage du C. fumiferana et du C. pinus avec une épine apicale courte et la présence de spicules microscopiques sur la moitié distale de l'édéage, permettent de séparer ces deux espèces des C. occidentalis, C. biennis et C. orae.

Type
Articles
Information
The Canadian Entomologist , Volume 117 , Issue 1 , January 1985 , pp. 1 - 5
Copyright
Copyright © Entomological Society of Canada 1985

References

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