oa Journal of the Entomological Society of Southern Africa - Species richness and relative abundance of female mosquitoes at a site in the western Orange Free State



Mosquitoes were caught at weekly intervals for three years from 1976 to 1978 in four light-traps placed near a group of typical mosquito breeding sites on the farm Danielskuil in the arid western Orange Free State: 25 species were found to be present, of which 8 had not previously been recorded from the Orange Free State. The numbers of females of each species caught in the three seasons into which every year was divided are given in tables. The three commonest species were, in descending order of abundance, Culex theileri, itedes juppi and the Ae. durbanensis group. They account for 84,7% of the total catch of 143 483 females, most of which (128 030) were caught in 1976. Only Cx. theileri was at all common during the winter months (943 females in three years); other species occasionally caught in winter included Cx. univillatus (40 females) Ae. juppi (30), and Culiseta longiareolata (26).


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