Polyrhachis serratus

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 : 140

6. Polyrhachis serratus .

P. niger; capite thoraceque rugosis, abdomine dense punctata, squama petioli transversa, margine superno serrata.

Worker. Length 2 lines. Black, with the antennae and legs ferruginous. Thorax oblong-quadrate or very slightly narrowed towards the metathorax, slightly convex above, not margined at the sides, the divisions not perceptible; the head and thorax rugose and pubescent. Abdomen globose, shining, and closely punctured; the scare of the petiole transverse above, produced into an acute spine on each side, the upper margin finely serrated, the lateral margins narrowed to their base, and having two or three small sharp spines.

Hab. Aru.