Polyrhachis

also known as Spiny Ants, as the common name of these ants suggests, it arises from the small protective spines that are often present.

Polyrhachis is a genus of formicine ants found in the Old World with over 600 species. The genus is yet to be comprehensively resolved and contains many varied species including nest-weavers (e.g. Polyrhachis dives), swimming workers (e.g. Polyrhachis sokolova), soil (e.g. Polyrhachis proxima) and tree-dwellers (e.g. Polyrhachis bicolor).

As a result, the nest architectures also vary with some species displaying a high level of complexity to nest building, utilizing larval silk to weave nest materials together.