8. Myrmecia mandibularis ^HNS. B.M.

Worker. Length 5 lines.-Black and shining: head quadrate and longitudinally striated; mandibles straight, with a slight bend at their base, of nearly equal width throughout, convex above, flattened beneath, obliquely truncate, forming a bent tooth at the apex; the inner edge with three or four teeth. Thorax: the pro-, meso- and metathorax above, much more strongly striated longitudinally than the head; the metathorax transversely striated behind; the apical joints of the tarsi ferruginous. Abdomen: the first node of the petiole, viewed sideways, is quadrate; above, it is convex, widest behind, and coarsely rugose; the second node subglobose, and longitudinally and finely striated, the abdomen densely clothed with ferruginous pubescence.

Hab. Adelaide.