关键词: 蠓科, 构成, 生境, 季节消长

Abstract: Objective In order to determine the diversity, distribution and seasonal dynamics of biting midges in different habitats of Nanchang city, China. Methods Biting midges were collected using a UV light traps with a suction fan, monthly collections were made during 2009-2012. Trapping was carried out twice a month (one was in the first ten-days of a month and the another was in the last ten-days of the month, and there were at least 15 days apart) from sunset to sunrise the following day throughout the study periods. Results A total of 63 874 biting midges were collected in 2009-2012. Eight genera (Dasyhelea, Atrichopogon, Forcipomyia, Lasiohelea, Culicoides, Alluaudomyia, Stilobezzia, and Bezzia)including 88 species were identified. Dasyhelea was the main genus in residential area 's habitats (36.07%)and hospital habitats (43.50%); Forcipomyia and Dasyhelea were the predominant genera in park habitats, comprised 34.04% and 31.92%, respectively. Culicoides was the predominant genera in residential area's habitats and animal shelters, comprised of 49.14% and 86.35%, respectively. Culicoides and Lasiohelea were the main blood sucking biting midges in Nanchang city, and they comprised 41.79% of the total number of collections. There were two stationary active seasons, peaking in July and September, in a year. Biting midges were recorded from March to November in 2009 to 2012. Conclusion Biting midges are abundant and widespread in human and livestock living environments, and the transmission risk of Culicoides-borne viruses exists.

Key words: Ceratopogonidae, Composition, Habitats, Seasonal fluctuation