Spatial and temporal distribution of mosquitoes (Culicidae) in Virudhunagar district, Tamil Nadu,

In the past few years, in many villages of Virudhunagar district, cases of dengue, chikungunya and viral fever have been suspected and hence in the present study an attempt has been made to find out the distribution of dengue and chikungunya vectors in different villages of Virudhunagar district, South India. The study period was nine months from May 2013 to January 2014. The distribution of mosquitoes recorded in the study area showed that nine species of mosquito belong to five genera namely; Aedes, Anopheles, Armigeres, Culex, and Mansonia. Totally 2147 adult mosquitoes were collected from all the study sites during the study periods. Culex quinquefasciatus (100%) and Aedes aegypti (90%) were constantly distributed during the study period. Aedes albopictus (70%) and Armigeres subalbatus (80%) were frequently distributed in the study areas. Anopheles subpictus (60%) and Culex gelidus (60%) were moderately distributed and Culex tritaeniorhynchus (30%) were distributed infrequently.