Abstract: In this paper four new speeies of sawflies are described．All the type specimens are deposited in the insect collection of the Forest Research Institute。The Chinese Academy of Forestry．1．Acantholyda Guizhouican.sp．The black head，thorax，antennae，legs，abdominal tergites I，centre of VII，VⅢ-X，and the infuscate fore wing make this species easily recognisable from all its known oriental congeners．Host plant：Pinus armendi Franch, Holotype：♀，Guizhou Province，18·IV·1979，Fellg Xiallgtun leg．950m．2．Cephalcia Danbaica 12．Sp．The new species is very closely related to Cephalcia chuxiongica Xiao，but is easily distinguished from the latter by its pitchy black ocellar triangle，prothoracic tergum，mesonoturn and by its host plant．Host plant:Picea retroflexa Mast．And Picea balfouriana Rehd。Et Wils.Holotype：♀，Sichuan Province，Danba County．30·Ⅲ·1986，Zeng Qixiang leg．Allotype：♂same as holotype．Paratypes：4♀♀，4♂♂，same as hellotype．3. Cephalcia Yanqincnsis n.sp．Fore wihg deep infuscate with its costal cells yellowish white，vein black；hind wing irffuscate．These characters make this species easily recogllisable from all its known congeners．H010type：♀，Beijillg Municipality，Yanqing County，19·Ⅵ·1986，Li Jianguo．Paratypes：4♀♀，same as holotype.4．Cephalcia Kunyushanica n.sp．The new species is most closely related to Cephalcia yanqingensis Xiao，from which it may be distinguished by the fore wing with its apical half deep infuscate and with its basal half dark yellow; hind wing with its apical angle and outer margin infuscate，and with the rest yellow．Host plant: Pinus densiflora Sieb．Et．Zucc.♂ Holotype:♀，Shandong Province，Kunyushan，21·Ⅵ·1983，Li Guangwu leg．Paratypes：2♀♀，locality same as holotype，7·Ⅵ·1973，Nankai University leg．