29. POLYRHACHIS EQUINUS ^HNS.

Worker. Length 3 lines.-Black and shining: the thorax flattened above, the metathorax and the scale of the petiole bispinose, the legs pale ferruginous. Head shining and delicately rugulose; the palpi pale testaceous. Thorax with the lateral margins acutely edged, the sides of the thorax delicately striated, the prothorax above slightly concave and horseshoe-shaped; the metathorax also slightly concave, with the posterior angles acute and elevated, the metathorax smooth and shining behind. Abdomen globose, smooth and shining; the scale of the peduncle elevated, with two stout teeth above, the sides oblique; the scale is narrowest at its base.

Hab. Borneo (Sarawak). (Coll. W. W. Saunders, Esq.)