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Effet des Conditions Thermiques Agissant Durant l'Embryogenèse sur le Nombre et la Durée des Stades Larvaires d'Aeschna Mixta [Odon. Aeschnidae]

Effet des Conditions Thermiques Agissant Durant l'Embryogenèse sur le Nombre et la Durée des... SUMMARY Effect of thermic conditions acting during embryogenesis upon the number and duration of the larval instars of Aeschna mixta [Odon. Aeschnidae] It has been established that the post-embryonic development of Aeschna mixta may involve 9, 10 or 11 larval instars, each growing type being determined ab ovo. The duration of embryonic development that depends on the temperature to which the eggs are subjected, acts upon the number and the duration of larval instars. A short embryogenesis induces the hatching of bigger larvae which develop by means of a lower number of instars within a rather short time. A long embryogenesis involves the formation of little sized larvulae which develop slowly through a higher number of instars. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Effet des Conditions Thermiques Agissant Durant l'Embryogenèse sur le Nombre et la Durée des Stades Larvaires d'Aeschna Mixta [Odon. Aeschnidae]

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Publisher
Taylor & Francis
Copyright
© 1970 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1970.12277928
Publisher site
See Article on Publisher Site

Abstract

SUMMARY Effect of thermic conditions acting during embryogenesis upon the number and duration of the larval instars of Aeschna mixta [Odon. Aeschnidae] It has been established that the post-embryonic development of Aeschna mixta may involve 9, 10 or 11 larval instars, each growing type being determined ab ovo. The duration of embryonic development that depends on the temperature to which the eggs are subjected, acts upon the number and the duration of larval instars. A short embryogenesis induces the hatching of bigger larvae which develop by means of a lower number of instars within a rather short time. A long embryogenesis involves the formation of little sized larvulae which develop slowly through a higher number of instars.

Journal

Annales de la Société entomologique de France (N S )Taylor & Francis

Published: Apr 30, 1970

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