30. Polyrhachis vindex ^HNS. B.M.

Worker. Length 2 1/2 lines.-Black, slightly shining: the thorax flattened above, with two acute spines in front. The head and thorax covered with shining hoary pile, the former longitudinally striated; the apex of the flagellum beneath and the palpi pale rufo-testaceous. The thorax delicately striated longitudinally, divided by two distinct sutures, the lateral margins raised and acute, the posterior angles of the metathorax produced into acute spines; the tibiae and femora ferruginous, more or less fuscous at their apex. Abdomen globose, smooth and shining; the scale of the peduncle incrassate, narrowed to the superior margin, which is rounded, and terminates in a minute tooth laterally.

Hab. Borneo.