Seasonal variations of culicine mosquitoes in district Rohtak

Seasonal pattern in relation to culicine fauna of Rohtak district of Haryana--India studied for two successive years i.e. from October 1988 to September 1990 is presented. A total of seven culicine species in the descending order of their densities were Cx. quinquefasciatus > Cx. tritaeniorhynchus > Ae. aegypti > Cx. vishnui/Ma. uniformis > Cs. fuscanus > Ar. kuchingensis their were found. Seasonal pattern of abundance were classified on the basis of fluctuations in different seasons for different species. i) Unimodal monsoon - Ae. aegypti, Cx tritaeniorhynchus, Cx. fuscanus; ii) Bimodal spring and monsoon - Cx. vishnui, iii) Bimodal spring and winter-Cx. quinquefasciatus; iv) Unimodal summer-Ma. uniformis.