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Analysis of Frequency Distribution of Adults and Larvae of Choristoneura fumiferana (Clem.) and C. pinus Free. (Lepidoptera: Tortricidae)1
Published online by Cambridge University Press: 31 May 2012
Extract
A rapid means of identifying species of insects on the basis of physical measurements is useful to the field worker. The efficiency of the postclypeal index in separating the larvae of two closely allied species is illustrated herein. Occasionally species fall into overlapping subgroups, making it difficult to determine the characteristics of a given subgroup. A method useful in identifying such subgroups is outlined herein.
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- Copyright © Entomological Society of Canada 1953
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