Polyrhachis jerdonii

Polyrhachis jerdonii is a species of ant in the subfamily Formicinae. It is endemic to Sri Lanka.

A part of the Polyrhachis cryptoceroides species group. Similar to Polyrhachis thailandica. Both have a laterally marginate mesosoma and a weakly indicated metanotal groove. They differentiate in the overall slupture of the body that, in P. jerdonii, is very delicately and finely reticulate-punctate.