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BLOOD-FEEDING IN OVERWINTERING CULEX TARSALIS (DIPTERA: CULICIDAE) FROM MANITOBA

Published online by Cambridge University Press:  31 May 2012

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

Diapause development in Culex tarsalis Coquillett has been characterized by reduced blood-feeding to complete termination of ovariole development at or before stage IIa (Bennington et al. 1958; Schaefer and Washino 1970; Schaefer et al. 1971; Bellamy and Corbet 1973; Mitchell 1979). The role that diapausing Culex species have in overwintering arboviruses has been examined (Eldridge 1966, 1968; Eldridge et al. 1972; Reeves 1974; Eldridge and Bailey 1979; Mitchell 1979). Gonotrophic dissociation and its implications for survival of the vector and virus has been reviewed by Washino (1977). Eldridge (1966) indicated gonotrophic dissociation was possible in Culex pipiens L. incubated at low temperature and short daylength and later reported failure of ovarioles of prehibernating C. pipiens to mature following a blood meal (Eldridge and Bailey 1979). Eldridge et al. (1972) reported that Culex restuans Theobald exhibited gonotrophic dissociation in response to conditioning by short daylength and low temperature. Mitchell (1981) has reported blood-feeding and gonotrophic dissociation in a significant portion of diapausing Culex tarsalis from Colorado, when females were kept at 15°C and at short daylength conditions.

Type
Articles
Information
The Canadian Entomologist , Volume 114 , Issue 1 , January 1982 , pp. 85 - 86
Copyright
Copyright © Entomological Society of Canada 1982

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References

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