42. Polyrhachis malignus ^HNS. Pl. IV. fig. 44. B.M.

Female. Length 5 1/2 lines.-Opake-black: the anterior margin of the clypeus notched in the middle. Thorax elongateovate, with an angular tooth or spine on each side of the prothorax; the metathorax has also a very stout spine at the lateral angles of its superior surface; the scale of the abdomen quadrate, with two very stout spines which curve backwards over the base of the abdomen; the mesothorax with an impressed abbreviated line in the middle anteriorly, the margins of which are smooth and shining; the wings subhyaline, their nervures rufo-testaceous, with the stigma darkest; legs without spines or hairs. Abdomen subglobose.

Hab. Philippine Islands.