Three new species of imitator-group of the genus Macrophya(Hymenoptera,Tenthredinidae) from China

Three species, Macrophya circulotibialis Li, Liu ＆ Heng, sp. nov., M. curvatitheca Li, Liu ＆ Heng, sp. nov. and M. changbaina Li, Liu ＆ Heng, sp. nov., of the imitator-group of the genus Macrophya Dahlbom （Hymenoptera, Tenthredinidae） from China are described as new to science. A key to all known species of the imitator-group from China is provided. The specimens examined in this study, including all holotypes and paratypes of the new species, are deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China, and the Department of Zoology, National Museum of Nature and Science, Amakubo, Tsukuba, Ibaraki, Japan.

Three new species of annulitibia-group of the genus Macrophya Dahlbom (Hymenoptera： Tenthredinidae)in Mts. Qinling from China

Three new species of the annulitibia-group of the genus Macrophya Dahlbom （Hymenoptera, Tenthredinidae） in Mts. Qinling from China are described, namely M acrophya brevicinctata Li, Liu ＆ Wei, sp. nov., M. qinlingium Li, Liu ＆ Wei, sp. nov. and M. rugosifossa Li, Liu ＆ Wei, sp. nov. A key to all known species of the annulitibia-group from China is provided. The specimens examined in this study are mostly deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China, including all holotypes and some paratypes of the new species. Other paratypes of the new species are deposited in the Department of Zoology, National Museum of Nature and Science, Amakubo, Tsukuba, Ibaraki, Japan.

Review of some Siobla(Hymenoptera:Tenthredinidae)species

Six Siobla species are revised,including the following new synonymies:S.rufoscapa Wei,2002,syn.nov.,synonymized by S.villosa Malaise,1931;S.tuberculatana Wei,2002,syn.nov.,synonymized by S.malaisei Mallach,1933 and Encarsioneura similis Mocsáry,1909,syn.nov.,synonymized by S.ruficornis(Gimmerthal,1834).S.frigida Mocsáry,1909,as the synonym of S.sturmii(Klug,1817)was recovered;Siobla plesia stat.nov.is regarded to be a valid species,rather than a subspecies of S.sturmii.Siobla iridipennis Malaise,1934 is redescribed based on the holotype,and a new species group,Siobla iridipennis group,is proposed.The characters of the group are briefly discussed.All illustrations of type specimens mentioned in this paper are provided.In addition,the lectotypes of Encarsioneura similis Mocsáry,1909,Encarsioneura frigida Mocsáry,1909,and Siobla sturmii plesia Malaise,1945 are designated here.