Density dependent polymorphism in the adult of Callosobruchus maculatus (Coleoptera, Bruchidae)
DOI: 10.1016/0022-474X(72)90028-8
Title: Density dependent polymorphism in the adult of Callosobruchus maculatus (Coleoptera, Bruchidae)
Journal Title: Journal of Stored Products Research
Volume: 8
Issue: 2
Publication Date: June 1972
Start Page: 111
End Page: 125
Published online: online 30 September 2003
ISSN: 0022-474X
Author: Syunro Utida
Affiliations:
  • Entomological Laboratory, Kyoto University, Kyoto, Japan
  • Abstract: pulations of Callosobruchus maculatus, there are two distinct forms of adult of each sex. One is very active in its behaviour and can fly, while the other is of rather dark body colour and cannot fly. The forms differ not only in morphology but also in physiology, chemical constitution of the body, behaviour and the response to crowding. The flight form can be induced by exposing the larval stage to crowding, high temperature, food of low water content, or to very short or very long photo-periods. A heriditary element controlling the appearance of the forms was experimentally demonstrated.
    Accepted: 19 January 1972
    Received: 7 July 1971

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