Study On The Funa And Diversity Of Sawfly On Mountain Hengshan

The concept and theory of biodiversity are introduced briefly. The current situation and problem of the research of insect biodiversity are analyzed and discussed briefly, as well as current situation of the research of sawfly biodiversity in China. The sawfly specimens were collected from different elevation and vegetation on the sample line from March to September in 2004, and from March to April in 2005 in Mt. Hengshan. The species are listed, and Shannon-Wiener index, Simpson index, Pielou index, Whittaker index are used to analyze the sawfly community diversity.Sixty six sawfly species belonging to 6 families and 36 genera have been collected from Mt. Hengshan in the research. Among them 14 new species are reported and described. They are Arge albocaudalica Wei, sp. nov., Phymatoceropsis melanogaster Wei et He, sp. nov., Aglaostigma laticincta Wei et He, sp. nov., Pachyprotasis pseudoerratica Wei, sp. nov., Pachyprotasis bistriatina Wei et He, sp. nov., Lagium xanthogaster Wei, sp. nov., Empria zhangi Wei, sp. nov., Tenthredo hengshana Wei, sp. nov., Tenthredo pseudocylindrica Wei et Nie, sp. nov., Pristiphora tricoloriformis Wei, sp. nov., Astethomostus tegularis Wei et Zhang, sp. nov., Aphymatocera sinica Wei, sp. nov., Claremontia albocollaris Wei, sp. nov., Claremontia ungulicella Wei et He, sp. nov.Also, 13 species are firstly recorded in Hunan Province: Abiaformosa Takeuchii, 1927, Arge baishanzua Wei, 1996, Stigmatozona sinensis Malaise, 1945, Pachyprotasis xanthotarsalia Wei et Nie, 2003, Pachyprotasis wui Wei et Nie, 1998, Pachyprotasis acutilabria Wei, 1998, Dolerus guisanicollis Wei, 1999, Dolerus sinensis Wei, 1997, Dolerus tritici Chu, 1949, Empria sulcata Wei et Nie, 1998, Macrophya erythrocephalica Wei et Nie, 2003, Birka plata Wei, 1997 and Stethomostus flavicollaris (Sato, 1928). Fauna analysis showes that the east Asian species are superior.The dominant species of sawfly on Mountain Hengshan is very obvious. And the phenomenon is distinct in April and May. In April Phymatoceropsis melanogaster is the senior dominant species, Taxonus annulicornis Takeuchi is the junior dominant...