杨氏双栉行军蚁Aenictus yangi Liu, Hita Garcia, Peng & Economo, 2015

Taxonomic notes. The identification of A. yangi within the A. ceylonicus species group can be easily performed with the updated identification key provided above. The new species is morphologically most similar to A. baliensis Jaitrong & Yamane, 2013 (Bali), A. longicephalus Jaitrong & Yamane, 2013 (Lombok), A. minipetiolus Jaitrong & Yamane, 2013 (Lombok), and A. wiwatwitayai Jaitrong & Yamane, 2013 (Thailand). However, A. yangi can be immediately separated from these by the development of the metanotal groove, the shape of the propodeum and the subpetiolar process, and the sculpture on the mesosoma and waist segments. Aenictus yangi can be easily separated from A. brevipodus Jaitrong & Yamane, 2013 (Thailand), and A. formosensis Forel, 1913 (Taiwan) by the number of mandibular teeth, shape of the head, the shape and punctate of petiole and postpetiole, and the shape of subpetiolar process.

Distribution. Yunnan。

Reference. Cong Liu, Francisco Hita Garcia, Yan-Qiong Peng, Evan P. Economo，Aenictus yangisp. n. – a new species of the A. ceylonicus species group (Hymenoptera, Formicidae, Dorylinae) from Yunnan, China，JHR 42: 33–45 (2015)