New synonymy and redescription of Anochetus mixtus Radchenko, 1993, and distinction from the other members of the Anochetus rugosus group (Hymenoptera: Formicidae: Ponerinae)

Anochetus yunnanensis Wang, 1993 is recognized as a junior synonym of Anochetus mixtus Radchenko, 1993, and the queen and male of Anochetus mixtus are described for the first time. In addition, male genitalia of A. princeps, A. rugosus and A. mixtus are described. The present study suggests the morphology of the male genitalia and associated sclerites may be useful for discriminating among Anochetus species in which the workers are largely indistinguishable