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OBSERVATIONS SUR LA STRUCTURE DES OCELLES LARVAIRES (STEMMATES) DE CERTAINS LÉPIDOPTÈRES1

Published online by Cambridge University Press:  31 May 2012

Bernard J. R. Philogène
Bernard J. R. Philogène
Affiliation:
Département de Biologie, Université d'Ottawa, Ottawa, Ont.
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Abstract

Larval ocelli (stemmata) of four species of Lepidoptera (Malacosoma pluviale, M. disstria, Isia isabella and Hypocrita jacobaeae) were examined under the photonic and the scanning electron microscope. Two types of ocelli are present, one with three convexities, the other with a single one. Differences exist between species. Examination of the internal structure reveals the presence of two separate morphological units, related to the external variations. The significance of these observations is discussed in the light of previous findings.

Résumé

Les ocelles larvaires (stemmates) de quatre espèces de Lépidoptères (Malacosoma pluviale, M. disstria, Isia Isabella et Hypocryta jacobaeae) ont été examinés au microscope photonique et au microscope électronique à balayage. Les ocelles appartiennent à deux types morphologiques, l’un à triple convexité, l’autre à convexité simple. Il existe des différences entre les espèces. L’examen de la structure interne révèle la présence de deux entités morphologiques séparées correspondant aux différences observées en surface. La signification de ces observations est discutée, à la lumière des travaux antérieurs.

Type
Articles
Information
The Canadian Entomologist , Volume 107 , Issue 10 , October 1975 , pp. 1073 - 1080
Copyright
Copyright © Entomological Society of Canada 1975

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References

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