| Tenthredo L. is the largest genus of Tenthredinidae of Symphyta, Hymenoptera, with more than 970 known species in the world. Tenthredo genitalis group and sinensis group are two of the important and representative taxa of the sawfly fauna of East Asian Region.This thesis introduced the general morphology of genitalis group and sinensis group of Tenthredo. The research history and present state of the taxonomy of the two groups were discussed in detail. The known species of the two groups were revised. Totally 40 species of the two groups were described, among them 5 new species were described,2 belonging to genitalis group and 3 belonging to sinensis group. Keys to known species of genitalis group and sinensis group were provided. Incitation to names, description in detail, figures of adults and some other important characters, etymology, distribution and specimens examined in this research, and diagnosis to each species, with a few exception, were provided. The five new species are: Tenthredo caliroiserrula Wei & Xiao, sp. nov., Tenthredo rnegadentella Wei & Xiao, sp. nov., Tenthredo zhengi Wei & Xiao, sp. nov. and Tenthredo tenuipes Wei & Xiao, sp. nov. from China, Tenthredo ferreri Wei & Xiao, sp. nov. from Myanmar. And 3 species were recorded for the first time in China:Tenthredo xanthoptera Cameron,1876, Tenthredo tuberculifera Konow,1898 and Tenthredo vitalisi (Turner,1920). The distribution and biogeography of the two species groups were also analyzed. The distribution patterns of the known species of the two groups were probed. The result of the analysis of the biogeography shows that the Southwestern region of China is the main distribution centre and the main differentiation centre of the two groups.Specimens examined in this research including the types of the new species described in the thesis are deposited in the Insect Collection of Central South University of Forestry and Technology, except otherwise mentioned. |
PDF Full Text Request