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ON CONIFEROPHAGOUS SPECIES OF CHORISTONEURA (LEPIDOPTERA: TORTRICIDAE) IN NORTH AMERICA: III. SOME CHARACTERS OF IMMATURE FORMS HELPFUL IN THE IDENTIFICATION OF SPECIES

Published online by Cambridge University Press:  31 May 2012

G. T. Harvey  and
G. Stehr
G. T. Harvey
Affiliation:
Department of Forestry and Rural Development, Sault Ste. Marie, Ontario
G. Stehr
Affiliation:
Department of Forestry and Rural Development, Sault Ste. Marie, Ontario
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Abstract

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Pigmentation of heads and prothoracic shields of last-instar larvae, colour of pupae, and frequencies of haemolymph colour morphs in fresh pupae are used to support the taxonomic differentiation of the following members of the genus Choristoneura: fumiferana, biennis, orae, occidentalis, viridis, subretiniana, pinus pinus, p. maritima, and lambertiana. These characters are statistical in nature and not competent to relate a single individual unequivocally to a taxonomic group; nevertheless, a key is developed to assist identification of populations on the basis of the characters described. Interspecific relationships within the genus are considered.

Type
Articles
Information
The Canadian Entomologist , Volume 99 , Issue 5 , May 1967 , pp. 464 - 481
Copyright
Copyright © Entomological Society of Canada 1967

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