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MECHANISM OF CREMASTER WITHDRAWAL AND ATTACHMENT IN PENDANT RHOPALOCEROUS PUPAE (LEPIDOPTERA)

Published online by Cambridge University Press:  31 May 2012

F. A. Urquhart
Affiliation:
Department of Zoology and Scarborough College, University of Toronto, Toronto, Ontario

Abstract

The role of exuvial holdfast tubercles located on the tenth abdominal segment of pendant rhopalocerous pupae in relation to cremaster withdrawal is described for the first time. Four phases, leading to the final exposure of the exarate pupa, are outlined together with an explanation accounting for pupal gyrations in discharging the larval exuviae after cremaster fixation.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1970

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