Polyrhachis trispinosus

Smith, F., 1861, Catalogue of hymenopterous insects collected by Mr. A. R. Wallace in the Islands of Ceram, Celebes, Ternate, and Gilolo., Journal of the Proceedings of the Linnean Society of London, Zoology 6, pp. 36-48 : 40

13. Polyrhachis trispinosus .

P. niger, laevis nitidusque; thorace inermi; petioli squama trispinosa.

Female. Length 4 lines. Jet black, smooth and shining; the antennae long and slender with the apical half ferruginous; the front of the head very convex. Thorax ovate, very delicately striated, the striae, short and irregular, may be called a faint scratching; wings wanting; the node of the peduncle with three short acute spines above; the claws of the tarsi rufo-testaceous. Abdomen ovate and very smooth and shining. (Pl. I. fig. 11.)

Hab. Celebes (Tondano).