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SUCCESSFUL REARING OF CENOCORIXA EXPLETA (HEMIPTERA: CORIXIDAE) IN FRESH WATER

Published online by Cambridge University Press:  31 May 2012

S.G. Cannings
S.G. Cannings
Affiliation:
Department of Zoology, University of British Columbia, Vancouver V6T 1W5
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Extract

The water boatman Cenocorixa expleta (Uhler) is an inhabitant of saline ponds in the interior of western North America (Jansson 1972; Scudder 1976). In a field survey, Scudder (1969a) failed to find this species in ponds with surface conductivities less than 3900 μmhos/cm. Although it is apparently absent from fresh water, the osmotic responses of C. expleta are essentially those of a fresh water insect (Scudder et al. 1972). Also, salinity tolerance experiments carried out by Scudder (1969b) show that at 15°C adults of the species can survive almost a month in fresh water (less than 800 μmhos/cm) without food. However, it has not been shown that C. expleta can actually develop and breed successfully in fresh water.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 5 , 01 May 1978 , pp. 559
Copyright
Copyright © Entomological Society of Canada 1978

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References

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