关键词: 蝇类, 生境, 种类构成

Abstract:

　　【Abstract】　Objective　To know the species composition and seasonal change of pest flies in the farm produce trade markets, the external environment of restaurants, the public green belts and the residential areas in Ningbo city, and to provide the theoretical basis for the establishment of flies control strategy. Methods　The adult flies were termly captured by cage with attractants and were identified and counted, and then calculating its density and constituent ratio.  Results　The dominant species in four kinds of habitats were Musca domestica,  Chrysomyia megacephala  and  Lucilia cuprina,  but  M.domestica, C.megacephala and L.sericata in the farm produce trade markets, C.megacephala, M.domestica and L.sericata in the external environment   of   restaurants,   C.megacephala,   L.cuprina    and   M.domestica   in   the   public  green  belts,  and  M.domestica, C.megacephala and L.cuprina in the residential areas． Among flies captured, the appearance of M.domestica was the earliest, and its disappearance was the latest. However, the activity period of other flies was all less than 8 months each year, and the peak was usually from May to October.  Conclusion　In the  control  of  flies,  the  life  habit  and  the  occurrence  rule  of M.domestica, Chrysomyia megacephala, L.sericata, and L.cuprina should be taken into account, and the key control period was from May to October.

Key words: Pest fly, Habitat, Species composition