Larval habitats of malaria vectors and other Anopheles mosquitoes around a transmission focus in northwestern Thailand.

We sampled 199 bodies of water for Anopheles larvae around a malaria-endemic village near Mae Sot, Thailand, over 2 years. Anopheles dirus species A and D occurred in 54 small, well-shaded, stream and temporary ground pools. The larval habitat of species D is reported for the first time. Anopheles minimus species A occurred in 8 samples from slow-moving streams, in 8 from rice fields, and in 2 from ground pools. Anopheles pseudowillmori occurred in one sample from a ground pool, in 3 from streams, and in 9 from rice fields.