Anopheline fauna and malaria incidence in Changlang District (Arunachal Pradesh).

Data on malaria incidence and prevalence as well as on abundance of anopheline species collected in Jairampur, Arunachal Pradesh, show that P. falciparum contributed 27.59% of the total positive cases, most of these being recorded during July to September. Of the twelve anopheline species recorded, Anopheles maculatus was the most predominant comprising 54.32% of the total collection. Other common species were An. peditaeniatus, An. philippinensis and An. kochi in order of decreasing proportion. An. dirus, the known vector, was collected in the whole-night human bait catches (indoor) but in low numbers. An. philippinensis is implicated as another potential vector, and changes in anopheline/vector fauna are attributed to ecological succession.