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SUDDEN DISAPPEARANCE OF THE PURSLANE SAWFLY, SCHIZOCERUS ZABRISKEI

Published online by Cambridge University Press:  31 May 2012

F. M. Webster
F. M. Webster
Affiliation:
Wooster, Ohio.
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Extract

On page 54 of the current volume of the Canadian Entomologist, I called attention to the sudden and almost total disappearance of this species at Wooster, Ohio, where it had for several years been excessively abundant, even up to the latter part of August and early September of last year, 1899. This abrupt termination of the period of activity was at the time attributed to the effect of a parasitic species, Ichneutes, sp. ?, which had in the meantime become also excessively abundant.

Type
Articles
Information
The Canadian Entomologist , Volume 32 , Issue 10 , October 1900 , pp. 318 - 319
Copyright
Copyright © Entomological Society of Canada 1900

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