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BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE) XIII. FURTHER OBSERVATIONS ON HEMOCYTOLOGICAL DISTINCTIONS BETWEEN SPECIES

Published online by Cambridge University Press:  31 May 2012

J.W. Arnold
Affiliation:
Biosystematics Research Institute, Agriculture Canada, Ottawa K1A 0C6

Abstract

The length of mature, fusiform plasmatocytes is a suitable character for distinguishing between last instar larvae of the closely related species Euxoa annir (Streck) and E. lutulenta (Smith). This is a consistent character for a number of Euxoa species, but unreliable in E. altera (McD) where it changed in constant fashion during this stage. The relationship between plasmatocyte length and the duration of aestivation was also examined and showed no clear correlation.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1979

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