云南省小兽体表医学昆虫的区系分布

Faunal Distribution on Medical Insects Collected from the Body Surface of Small Mammals in Yunnan Province,China

目的调查了解云南省小兽体表医学昆虫蚤类、虱类的种群组成与分布特征。方法选择云南省境内22县(市)进行小兽体表蚤类、虱类调查(为20个点)。现场鉴定所获宿主及采集小兽体表的全部昆虫并制作玻片标本并进行鉴定。结果所采集蚤类隶属6科26属51种,其中东洋界有37种(72.55%),古北界仅有3种;吸虱隶属7科9属31种,其中东洋界有19种(61.29%),古北界仅有1种;两者的两界兼有种均有11种。结论云南医学昆虫区系东洋成分和古北成分互相交融,区系组成复杂多样。不同动物地理小区医学昆虫的分布不均衡。

Objective To investigate the geographical distribution and population composition of medical insects collected from the body surface of the small mammals in Yunnan Province, China. Method All the captured hosts in 22 counties （towns） were identified mainly in the local sites. All the insects were conventionally made as glass slides and then to be identified. Results 10 417 fleas which belong to 6 families, 26 genera and 34 092 lice （from 20 counties and towns） which belong to 7 families, 9 genera were collected. Of 51 flea species and 31 louse species, Separately 37 （72. 55% ） and 19 （61.29 % ） in Oriental realm, 3 and 1 in Palaearctic realm, each 11 species in both realms were recorded. Conclusions The fauna characteristics of medical insects is the mutual blending of Palaearctic and Oriental species, having complicated and diverse fauna components, the distribution in different microregions is imbalance.