132. Formica aurocincta ^HNS. B.M.

Worker. Length 4 1/2 lines.-Head, autennae, thorax, legs and scale, ferruginous; abdomen black, the apical margins of the segments of a semi-transparent golden colour. Head wider than the thorax, subquadrate, the sides nearly parallel, mandibles black, stout, and furnished with five or six acute teeth; the clypeus blackish. Thorax rounded in front, narrowed posteriorly, and with a deep strangulation at the base of the metathorax; legs elongate. Abdomen ovate; the scale of the peduncle quadrate and incrassate, obtuse above.

Hab. Adelaide.