FIVE NEW SPECIES AND ONE NEW RECORD SPECIES OF THE ANT GENUS LEPTOGENYS ROGER (HYMENOPTERA: FORMICIDAE) FROM YUNNAN PROVINCE,CHINA*

Abstract Five new species of the ant genus Leptogenys Roger are described from Xishuangbanna, Yunnan Province, China, i.e. L. huangdii sp. nov. L. pungui sp. nov. L. zhuangzii sp. nov. L.Zaozii sp. nov. L. mengzii sp. nov. A new record species for China, L. crassicornis Emery, was collected in the same area. A key based on worker caste is prepared for the 13 species known in China. Detailed figures are given for 12 species except L. peuqueti (Andre). The known Chinese species are divided into 4 species groups, i.e. L. crassicornis ‐group, L. chinensis‐ group, L diminuta ‐group, and L zhuangzii‐group.