9. Polyrhachis mutiliae ^HNS.

P. niger; capite thoraceque cinereo-sericeo vestitis; abdomine pallide-aureo tectis; thorace spinis acutis duabus antice et postice armato; squama spinis duabus longis curvatis.

Worker. Length 2 1 / 2 lines. Black, the head and thorax with a thin silky cinereous pile, that on the abdomen of a pale golden hue, the antennae and legs black without pile, and slightly shining. Thorax convex above, the anterior spines short, slender and acute; the metathoracic spines rather longer but equally slender and acute; the node of the peduncle with two long spines which are curved to the shape of the base of the abdomen; the latter globose. The thorax flattened transversely, but curved longitudinally. (Pl. I. fig. 7, and fig. 15 var.?)

Hab. Celebes (Tondano).