10. Ponera vidua ^HNS.

P. rufescenti-fusca; antennis elongatis; thorace ovato, postice truncate; alis hyalinis; abdominis nodo incrassate, subtus spinis duabus parvis armato.

Male. Length 4 lines. Red-brown: antennae elongate, fusco-ferruginous, the base, and apex of the joints, pale testaceous; the eyes large and ovate, the ocelli large and of glassy brightness. Thorax ovate, with a thin loose downy pubescence; the metathorax truncate, the sides rugose; wings hyaline, the nervures pale yellow, with the stigma brown; the legs pale testaceous. Abdomen smooth and shining, with thin scattered long pale pubescence, most dense towards the apex; a deep strangulation between the first and second segments; the node incrassate, coarsely rugose, rounded in front and above, truncate behind; beneath furnished with two short teeth. Hab. Borneo (Sarawak).