Abstract
Using multidirectional ramp traps baited with CO2, the flight activity of mosquitoes was monitored on a continuous basis for two seasons, with samples segregated into 30-min catches. Over 16 000 catches were collected, from which 22 species of mosquitoes were identified. Seasonal extrema are reported for all mosquito species collected and detailed seasonal and daily patterns of activity are given for the six most abundant species, namely Aedes canadensis (Theobald), Aedes communis (DeGeer), Aedes diantaeus Howard, Dyar and Knab, Aedes intrudens Dyar, Aedes punctor (Dirby), Aedes abserratus (Felt and Young), and Mansonia perturbons (Walker). All six abundant species had a peak of activity in the evening: A. communis the earliest, around 1800, and M. perturbons the latest, around 2200. Mansonia perturbons was the only species with a distinct peak of early morning activity, although some activity was evident for other species. Perspective plots for A. communis and M. perturbons are used to examine relationships between seasonal and daily patterns. There was a detectable change through the season in the daily pattern of A. communis, but no change was detected for M. perturbons.
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