Five new sawfly species of the genus Siobla Cameron are described from China:Siobla acutitheca Niu et Wei,sp.nov.,S.carinoclypea Niu et Wei,sp.nov.,S.clavicornis Wei et Niu,sp.nov.,S.nigrolateralis Wei et Niu,sp.nov.,S.trimaculata Wei et Niu,sp.nov.Type specimens of the new species are deposited in the Insect Collection of Central South University of Fores...