中国棱胸蚁属系统分类研究(膜翅目:蚁科)

摘要

研究中国棱胸蚁属Pristomyrmex Mayr蚂蚁4种:短刺棱胸蚁,P.brevispinosus Emery,台湾棱胸蚁P.formosaeForel,双针棱胸蚁P.pungens Mayr,弯钩棱胸蚁P.hamatus sp.nov..编制了工蚁分种检索表.描述了采于云南省南部勐腊热带雨林内一新种弯钩棱胸蚁P.hamatus sp.nov.该新种与双针棱胸蚁P.pungens Mayr接近,但上颚内缘具1个明显的齿,背面观并胸腹节刺内弯呈钩状,侧面观胸部背面圆形隆起,腹柄结宽且背面较直.模式标本标本保存在西南林学院资源学院.%This paper examines the systematic relationships of four Chinese species of Pristomyrmex Mayr , i.e.P. brevispinosus Emery, P. formosae Forel, P. pungens Mayr, P. hamatus sp. nov. A key based on worker caste is provided for the known Chinese species. The new species, P. hamatus sp. nov., collected in the tropical rain forest of southern Yunnan Province is close to P. pungens Mayr, but inner margin of mandible with a distinct tooth, in dorsal view apices of propodeal spines curved inward and hook-like, in profile view dorsum of alitrunk roundly convex, petiolar node broad and with dorsum relatively straight. The type specimens are deposited in the Insect Collection, Faculty of Resources, Southwest Forestry College, Kunming, yunnan Province, China.