Polyrhachis hespera

Polyrhachis hespera is known only from a single specimen collected at Eneabba in the Batavia Coast region of Western Australia.

Identification
Polyrhachis hespera is quite similar to Polyrhachis gravis. They share a distinctly raised carina on the anterior margin of first gastral tergite and have quite similar configurations of the petiole. It differs from the latter by its shorter antennal scapes (SI 115 in hespera versus 125-131 in gravis), distinctly smaller and strongly convex eyes, and by having the pronotal dorsum widest across the humeri. In contrast, the eyes in P. gravis are comparatively larger and less convex and the pronotal dorsum is widest at about its midlength.

Distribution based on Regional Taxon Lists
Australasian Region: Australia.

Nomenclature

 *  hespera. Polyrhachis (Campomyrma) hespera Kohout, 2013: 101, figs. 3C-D, G-H (w.) AUSTRALIA.