Forest Culicinae mosquitoes in the environs of Samuel Hydroeletric Plant, state of Rondônia, Brazil

Data on frequency and seasonal distribution of culicinae were recorded in the forest near a recently constructed hydroelectric plant - Samuel, in the State of Rondônia, Brazilian Amazon. Collections were perfomed almost daily from August 1990 to July 1991, between 6 and 9 p. m., using human bait. A total of 3,769 mosquitoes was collected, representing 21 species, including seven new records for the State of Rondônia. The most frequently collected species were Aedes fulvus (25 per cent) and Ae. pennai (12.3 per cent). The highest density for the majority of mosquito species coincided with the rainy season.