8th November 2025
Fish Hook Ant, Polyrhachis ypsilon Emery, 1887 of Sarawak / Borneo – around 1200m ASL Polyrhachis ypsilon Emery, 1887 is an ant species of the subfamily Formicinae (tribe Camponotini) from the genus Polyrhachis (subgenus Polyrhachis) and is assigned to the…