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POLYEMBRYONY IN THE HOUSE CRICKET (ORTHOPTERA: GRYLLIDAE)1

Published online by Cambridge University Press:  31 May 2012

Y. H. Prévost  and
J. E. McFarlane
Y. H. Prévost
Affiliation:
Department of Entomology, Macdonald Campus of McGill University, Ste-Anne de Bellevue, Québec H9X 1C0
J. E. McFarlane
Affiliation:
Department of Entomology, Macdonald Campus of McGill University, Ste-Anne de Bellevue, Québec H9X 1C0
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Extract

Polyembryony is the development of two or more embryos from a single egg. It occurs normally in parasitic insects, e.g., in Strepsiptera, Halictoxenos (Noskiewicz and Poluszński 1935), and in four families of Hymenoptera: Braconidae, Macrocentrus (Muesebeck et al. 1951); Encyrtidae, Ageniaspis (Marchal 1904) and Copidosoma (Doutt 1947); Platygasteridae, Platygaster (Hill and Emery 1937); and Dryinidae Aphelopus (Kornhauser 1919). In these insects polyembryony serves as a survival mechanism.

On the other hand, sporadic polyembryony has been reported to occur in eggs of the grasshoppers Dociostaurus and Melanoplus (Slifer and Shulow 1947).

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 10 , October 1979 , pp. 1199 - 1200
Copyright
Copyright © Entomological Society of Canada 1979

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References

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