This study reports the finding of Biomphalaria tenagophila naturally aestived in two municipalities of the State of S.Paulo (Brazil): Ubatuba and Conchas. This ethological characteristic was discovered in 15 specimens collected in Ubatuba, and in 6 specimens collected in Conchas. The snails aestived showed vitality after bling placed in water.
Biomphalaria tenagophila; Estivation; Schistosomiasis mansoni; Ecology, vectors