Polyrhachis irritabilis

Smith, F., 1859, Catalogue of hymenopterous insects collected by Mr. A. R. Wallace at the Islands of Aru and Key., Journal of the Proceedings of the Linnean Society of London, Zoology 3, pp. 132-158 : 141

10. Polyrhachis irritabilis .

P. niger, pube pallide aurea vestitus; thorace quadridentate, petioli squamula bidentata.

Female. Length 6 1 / 2 lines. Black, and densely clothed with short pale golden pubescence; all parts of the insect sprinkled with erect cinereous hairs; the mandibles shining black, the palpi pale testaceous; the head elongate, the eyes placed high on the sides of the head, ferruginous and very prominent. Thorax elongate-ovate; the prothorax with a short, stout, acute tooth on each side, slightly curved and directed forwards; the metathorax with a similar tooth on each side directed backwards; the wings subhyaline, the nervures fuscous; the legs fusco-ferruginous, the femora and coxae brightest. Abdomen ovate; the scale incrassate, armed above with two stout acute teeth.

Hab. Aru. This is probably the female of P. sexspinosus .