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THE FLYING SEASON AND EMERGENCE PERIOD OF ANAX JUNIUS IN ILLINOIS (ODONATA: AESHNIDAE)

Published online by Cambridge University Press:  31 May 2012

Allen M. Young
Allen M. Young
Affiliation:
Department of Zoology, The University of Chicago, Chicago, Illinois
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Abstract

The flying season (sensu lato) and emergence period of Anax junius Drury were determined by routine counts of adults and exuvial collections at a small woodland pond m northern Illinois. The flying season, in this case including activity of apparently young adults, was from April to mid-November. Emergence listed 55 days (26 August to 19 October 1965), the pattern being of the "summer" species type. Before emergence began all adults appeared to be mature and oviposition was often seen. After emergence began, apparently young adults predominated and no oviposition was seen.

Type
Articles
Information
The Canadian Entomologist , Volume 99 , Issue 8 , August 1967 , pp. 886 - 890
Copyright
Copyright © Entomological Society of Canada 1967

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References

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