湖北地区已知蚤类及区系分析

THE FLEAS AND THEIR DISTRIBUTION IN HUBEI PROVINCE WITH THE DELIMIATION OF ZOOGEOGRAPHICAL REGIONS

湖北地区已知蚤类64种,其中属东洋界种类25种,占39.5%;属古北界种类31种占48.4%;广布两界种类8种,占12.1%。古北界种类中,位于鄂西华中第一高峰的神农架林区则发现28种,其中与古北界青海藏南亚区共有的蚤达18种,具有明显的古北界岛屿的特征。作者分析后认为,湖北地区蚤类区系应划归东洋界。

In the present paper,the writers attempt to deal with the problem of the delimitation of the boundaries of szoogeographical regions on the siphonaptera fauna of the Hubei Province. Among the 64 species of fleas listed,25 species(or 39 5%) belong to the species entirely or mainly distributed in the Oriental Region,31 species(or 48 4%)to those entirely or mainly distributed in the Palaearctic Region,and 8 species (or 12 1%) to those in both Oriental and Palaearctic Region.The writers suggest that Hubei Province should be included in the Oriental Region. Mt.Shennongjia is situated at 3150 meters above sea level in west Hubei province,and 41 species fleas wase found these.Among them 28 species(or 68 3%)are entirely or mainly distributed in the Palaeactic Region.The composition is similar as in Qinghai south Xiazng subdistrict.It shows Mt.Shennongjia has significant characteristics of “Palaearctic region island”.