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Role of modified CDC miniature light-traps as an alternative method for sampling adult anophelines (Diptera: Culicidae) in the National Mosquito Surveillance Programme in India

Published online by Cambridge University Press:  09 March 2007

C. Sadanandane ,
P. Jambulingam  and
S. Subramanian
C. Sadanandane*
Affiliation:
Vector Control Research Centre (ICMR), Medical Complex, Indira Nagar, Pondicherry 605006, India
P. Jambulingam
Affiliation:
Vector Control Research Centre (ICMR), Medical Complex, Indira Nagar, Pondicherry 605006, India
S. Subramanian
Affiliation:
Vector Control Research Centre (ICMR), Medical Complex, Indira Nagar, Pondicherry 605006, India
*
*Fax: +91-413-2272041 E-mail: mailto:[email protected]
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Abstract

The efficiency of modified CDC miniature light-traps for sampling adult mosquitoes was evaluated in comparison with indoor resting, outdoor resting, indoor man-landing and outdoor man-landing collections in the hilly district of Koraput, Orissa, India. Overall, light-traps captured 78% of adult mosquitoes collected by all methods. Of the 16 anopheline species recorded in the study area, light-traps effectively sampled 13, contributing about 72% of the total anophelines collected by all methods. Light-traps also caught a large number of female Culex vishnui Theobald (96%). As fully-fed mosquitoes were predominant (82%) and caught alive, light-traps can be used to catch large numbers of vector mosquitoes for studies on vector prevalence, distribution, vector incrimination and also for laboratory bioassays. Light-trap and indoor resting collections revealed similar seasonal trends in numbers of Anopheles culicifacies Giles, A. fluviatilis James, A. jeyporiensis James, A. vagus Doenitz, and A. splendidus Koidzumi. Age-structure of the samples did not vary significantly between the two methods. Light-traps could be used as an alternative to daytime indoor resting collections to monitor the seasonal fluctuations in the abundance and parity rates of these species. The light-trap collections correlated with indoor and outdoor man-landing collections of A. jeyporiensis and the outdoor man-landing collections of A. maculatusTheobald in measuring seasonal trends. Light-trap collections can thus be used as a substitute for man-landing collections of A. jeyporiensis and A. maculatus.

Type
Research Article
Information
Bulletin of Entomological Research , Volume 94 , Issue 1 , February 2004 , pp. 55 - 63
Copyright
Copyright © Cambridge University Press 2004

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