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TEMPERATURE MODIFICATION BY BAGS OF THE BAGWORM THYRIDOPTERYX EPHEMERAEFORMIS (LEPIDOPTERA: PSYCHIDAE)1

Published online by Cambridge University Press:  31 May 2012

P. Barbosa ,
M. G. Waldvogel  and
N. L. Breisch
P. Barbosa
Affiliation:
Department of Entomology, University of Maryland, College Park, Maryland 20742
M. G. Waldvogel
Affiliation:
Department of Entomology, University of Maryland, College Park, Maryland 20742
N. L. Breisch
Affiliation:
Department of Entomology, University of Maryland, College Park, Maryland 20742
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Abstract

Surface and internal temperatures of bags made by Thyridopteryx ephemeraeformis (Haworth) as well as ambient temperatures were recorded in sun and shade. Temperatures of bags in both shaded and exposed areas of the tree were significantly higher than ambient air temperatures. Bag surface temperatures were not significantly different from internal bag temperatures. Differences between internal, surface, and ambient temperatures could not be attributed to host tree species. Finally, there were no significant differences in temperature between bags with and without larvae.

Résumé

Les températures superficielles et internes des cases fabriquées par Thyridopteryx ephemeraeformis (Haworth) ainsi que la température ambiante ont été relevées au soleil et à l'ombre. Les températures des cases étaient significativement plus élevées que les températures de l'air ambiant à la fois à l'ombre et aux endroits exposés. Les températures superficielles des cases ne différaient pas significativement de leurs températures internes. Les différences entre les températures internes, superficielles et ambiantes n'ont pu être imputées à l'espèce d'arbre-hôte. Enfin, les différences de température entre des cases avec et sans larves n'étaient pas significatives.

Type
Articles
Information
The Canadian Entomologist , Volume 115 , Issue 7 , July 1983 , pp. 855 - 858
Copyright
Copyright © Entomological Society of Canada 1983

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