TY - JOUR AU - Xu, Z.-H. AU - Zhang, C.-L. T1 - Review of the myrmicine ant genus Perissomyrmex M.R. Smith, 1947 (Hymenoptera: Formicidae) with description of a new species from Tibet, China JF - Myrmecological News Y1 - 2012 DA - 2012 PB - The Austrian Society of Entomofaunistics SN - Print: 1994-4136 - Online: 1997-3500 N1 - 10.25849/myrmecol.news_017:147 DO - 10.25849/myrmecol.news_017:147 SP - 147-154 KW - Hymenoptera, Formicidae, Perissomyrmex, new synonyms, new species. AB - The myrmicine ant genus Perissomyrmex M.R. Smith, 1947 is reviewed. Perissomyrmex emarginatus Ogata & Okido, 2007 is a junior synonym of P. bidentatus Zhou & Huang, 2006. Perissomyrmex nepalensis Radchenko, 2003 is a junior synonym of P. monticola De Andrade, 1993. A new species collected from Tibet, China, P. medogensis sp.n., is described. Descriptions of soldier and queen castes and measurements of worker caste of P. bidentatus are supplemented based on the specimens collected from Hengduan Mountains of southwestern China. Worker dimorphism is discovered in P. medogensis sp.n. and P. bidentatus in the Old World fauna. It implies that workers of the genus are weakly dimorphic. A key to the six known species of the genus of the world is provided based on the worker caste. JA - Myrmecological News M3 - Original Article VL - 17