宜昌市革螨和恙螨调查及其区系研究

目的：调查宜昌市革螨和恙螨及其区系成分。方法：收集革螨及恙螨种类并作出区系的界定。结果：已发现革螨17属33种，其中东洋界种类11种。占33.3%；古北界种类13种，占39.4%；广布两界种类8种，占27.3%。恙螨10属34种，其中东洋界种类27种，占79.4%；古北界种类2种，占5.9%；广布两界者5种，占14.7%，结论：宜昌市革螨及恙螨区系应划归东洋界。

A Surey on Gamasid Mites and Trombiculid Mites with Delimitation of Zoogeographieal Regions in Yichang, Hubei Province

Objective:To survey Gamasid mites and Trombiculid mites in Yichang,Hubei province. Methods:To collect the samples of Gamasid mites and Trombiculid mites,to analyze and confirm the delimitation of zoogeographical regions of the Gamasid mites and Trombiculid mites fauna.Results: Among the 17 genera and 34 species of Gamasid mites listed, 11 species (or 33.3 %) belonged to the species entirely or mainly distributed in the oriental region, 13 species (or 39.4 %) to those entirely or mainly distributed in the palaearctic region, and the 8 species (or 27.3 %) to those distributed in both regions. Among the 10 genera and 34 species of Trombiculid mites listed, 27 species were entirely or mainly distrubuted in the oriental region, 2 species (or 5.9 %) entirely or mainly in the palaearctic region, and 5 species (or 14.7 %) were found in both regions.Conclusion: It is considered that the delimitation of zoogeographical region in Yichang is included in the oriental region.