Mosquito (Diptera: Culicidae) collections were made on the Pedro Peixoto Colonization Project in the State of Acre, Brazil. Four thousand, five hundred and eighty-eight (4,588) specimens were collected and fifty-three (53) species or group recognised. The occurrence of Anopheles (Nyssorhynchus) oswaldoi is given special emphasis.
Mosquitoes; Ecology, vectors