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BLOOD-FEEDING AND GONOTROPHIC DISSOCIATION IN OVERWINTERING ANOPHELES EARLEI (DIPTERA: CULICIDAE) FROM SOUTHERN MANITOBA

Published online by Cambridge University Press:  31 May 2012

W. J. Gallaway  and
R. A. Brust
W. J. Gallaway
Affiliation:
Department of Entomology, University of Manitoba, Winnipeg, Manitoba R3T 2N2
R. A. Brust
Affiliation:
Department of Entomology, University of Manitoba, Winnipeg, Manitoba R3T 2N2
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Abstract

A total of 72 overwintering Anopheles earlei Vargas was collected from southern Manitoba during December 1980 and 1981. These mosquitoes were maintained at 15 °or 20 °C, and a photoperiod of 8L: 16D. Forty-two females were offered a blood meal and 25 of these fed. Extensive fat body development was seen in the blood-fed females collected in 1980; this was not seen in collections from 1981. Gonotrophic dissociation was observed in 24 of the blood-fed females.

Résumé

Un total de 72 individus hivernants de l'Anopheles earlei Vargas ont été collectionnés au sud du Manitoba au mois de décembre des années 1980 et 1981. Ces moustiques furent élevés à 15 °et 20 °C sous une photopériode de 8L :16N. Sur 25 femelles auxquelles fut offert un repas de sang, 25 se sont alimentées. Un développement prononcé du corps gras fut observé chez les femelles nourries de sang collectionnées en 1980, mais pas chez celles collectionnées en 1981. Une dissociation gonotrophique fut observée chez 24 des femelles nourries de sang.

Type
Articles
Information
The Canadian Entomologist , Volume 114 , Issue 12 , December 1982 , pp. 1105 - 1107
Copyright
Copyright © Entomological Society of Canada 1982

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