Seasonality of indoor resting mosquitoes in a broken-forest ecosystem of north-western Orissa.

The seasonal prevalence and indoor resting habits of mosquitoes in a broken-forest ecosystem of Orissa, which is known to be endemic for malaria and bancroftian filariasis, have been studied. A total of 15 anopheline spp., 9 Culex spp. and one each of Aedes, Armigeres and Mansonia, were collected. Major species with perennial occurrence were Anopheles culicifacies, An. subpictus, An. annularis, An. vagus, An. pallidus, An. nigerrimus, Culex quinquefasciatus and Cx. tritaeniorhynchus. These species rested more in cattlesheds than in human dwellings, except Cx. quinquefasciatus which was abundant in human dwellings. The prevalence and indoor resting pattern of different species in relation to seasons and other factors were also investigated.