| Dexiinae is a dipteral subfamily belongs to Tachinidae. This paper is aimed to give an initialunderstanding of it’s characteristics of distribution, distribution pattern and the origin andevolution of endemic species, as well as the effect and impact of geological histories, etc.In this study, a total of classification, review and appraisal of more than4000Dexiinespecimens of China were examined,86references were studied and a database of chineseDexiinae’s geographical distribution using Excel was built. And more than20000biogeographydata and distributed data of33provinces and autonomous regions more than200county fromChina were collected and used. Then we got the following results:FIRST: There are25genera belong to5tribes, up to120Dexiine species known,compromised12%all over the world, including46endemic species. In addition, share50species with the Oriental,5species with the Austrilian, and3species with the Afratropical andthe Nearctic Regions respectively. The distribution characters of Dexiinae species of China are:the most abundant in north China, followed by Qinghai-Tibetan plateau area. And Sichuan (48species) and Yunan (44species) are the most dexiine species provinces in China.SECOND: China’s endemic species of Dexiinae accounted for37%of the total numberspecies of China Dexiinae,15endemic Palearctic species,16.67%of the total number of species,26endemic Oriental species,34.21%of the total number of species, extremely rich in species.The Hengduan Mountains is initial speciation and endemic biodiversity distribution center ofDexiinae. Both the richest species provinces of Dexiinae of China are Sichuan and Yunnan.THIRD： Summary of China Dexiinae distribution patterns are: Palearctic distributionpattern, Oriental distribution pattern, Palearctic and Oriental distribution pattern, Palearctic andNearctic distribution pattern, China endemic distributin pattern. A discussion of the origin andevolution center of Dexiinae of China.was done. |
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