1. Polyrhachis phyllophilus ^HNS.

P. opacus, niger; thoraee spinis duabus acuris antice et postice armato; abdominis squamula spinis duabus arcuatis armata.

Worker. Length 4 lines. Opake black, with the abdomen of an obscure rusty red; the palpi elongate and pale testaceous; eyes prominent; the two carinae on the front, at the sides of which the antennæ are inserted, very much elevated and acute. Thorax; the spines on the prothorax long, acute, and diverging outwards; the metathorax compressed, the upper surface slightly concave, with the lateral margins raised, the carinae continued into two long parallel spines which project over the peduncle of the abdomen; the legs slightly shining, destitute of spines and hairs, the calcaria pale. Abdomen obscurely red and slightly pilose; the peduncle armed above with two long acute curved spines, which project over the base of the abdomen.

Hab. Makassar.