甘肃省虻科昆虫区系研究

采用网捕、畜诱、帐诱和诱虻器诱捕法对甘肃省虻科区系作了调查研究,并对所收藏标本进行整理和前人文献收集。记述甘肃省虻科6属82种(检视标本61种,另有21种依据文献资料,未见标本),即斑虻属10种、黄虻属6种、麻虻属8种、瘤虻属28种、虻属29种和指虻属1种。各分布区的虻种组成与数量不一,陇南南部山地虻科5属31种,其中东洋界成分11种,古北界成分8种,广布种成分12种,是甘肃省虻种分布最多的地区;陇南北部山地虻科5属28种,其中古北界成分18种,广布种成分10种;甘南高原草原虻科5属22种,其中古北界成分18种,广布种成分4种;陇东黄土高原虻科2属5种,其中古北界成分2种,广布种成分3种,该区虻种组成简单,也是虻种数最少的分布区;中部黄土高原虻科5属11种,其中古北界成分6种,广布种成分5种;河西走廊虻科5属28种,其中古北界成分25种,广布种成分3种;祁连山地虻科4属12种,其中古北界成分11种,广布种成分1种。

STUDY ON THE FAUNA OF TABANIDAE IN GANSU

The fauna of Tabanidae in Gansu were investigated by capturing with net,trapping tent luring with person or livestock and device.There are 6 genera and a total of 82 species of Tabanidae in Gansu (examing 61 of specimen; 21 from reference).Among them,10 species of Chrysops,6 species of Atylotus,8 species of Haematopota,28 species of Hybomitra,29 species of Tabanus and 1 species of Isshikia.The composition and quantity of Tabanidae are different in every distribution area.In southern areas of Long Mountain there are 5 genera and a total of 31 species,and among these species,11 species of oriental region,8 species of palaearctic region,12 species are widespread species,the most species are distributed at this area.While in northern hilly area,there are 5 genera and a total of 28 species,of them 18 species of palaearctic region,10 species are widespread species.There are 5 genera and a total of 22 species in grassland area of south Gansu plateau,18 species of palaearctic region,4 species are widespread species.There are 2 genera and 5 species in Loess Plateau,eastern Long Mountain,2 species of palaearctic region,3 species are widespread species,the composition is simple and species are the least in this area.There are 5 genera and 11 species in Loess Plateau of middle part,among these species,6 species of palaearctic region,5 species are widespread species.There are 5 genera and 28 species in Hexi Corridor,25 species of palaearctic region,3 species are widespread species.There are 4 genera and 12 species in hilly area of Qilian Mountains,11 species of palaearctic region,1 species are widespread species.