21. Polyrhachis hippomanes ^HNS.

P. niger; capite thoraceque opacis; abdomine nitido; thorace spinis duabus longis acutis postice armato; squama spinis duabus longis curvatis armata.

Worker. Length 2 1 / 4 lines. Black, the head and thorax opake, and obscurely tinged with blue. Thorax rounded above, the anterior margin unarmed; the metathorax with two long divergent spines; the node of the peduncle with two similar spines, which are curved and extend over the base of the abdomen; the trochanters and the intermediate and posterior coxae pale rufo-testaceous; the legs elongate. The abdomen globose. (PL I. fig. 20.)

Hab. Celebes (Tondano).