Formica circumspecta

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 : 37

4. Formica circumspecta .

F. rufo-picea, antennis pedibusque pal-lide ferrugineis; squamula subquadrata, supra emarginata (f oe). F. pallide ferruginea, elongata et gracilis; abdomme rufo-fusco (operaria).

Female. Length 6 1 / 3 lines. Rufo-piceous, smooth and shining, the anterior part of the head, its anterior margin, the scutellum and base of the abdominal segments of a brighter colour; the antennae, legs, and scale of the peduncle pale rufo-testaceous; the head oblong, narrowed anteriorly, transverse behind, and slightly emarginate in the middle; the mandibles stout, punctured, and with a row of black acute teeth on their inner margin; the head slightly punctured in front; the scale of the peduncle subquadrate, slightly emarginate above.

Worker major. 3 1 / 2 lines. Of a pale ferruginous, with the posterior portion of the abdomen fuscous; head oblong, narrowed behind the eyes; thorax oblong, narrow, compressed behind; the scale of the peduncle small, narrow, with the superior margin rounded above; the thorax narrowed anteriorly, forming a sort of neck.

The worker minor is 2 lines in length, more slender than the larger worker, with the antennae and legs much more elongate, the head narrowed behind, and the thorax prolonged into a sort of neck when viewed sideways. Hab. Celebes (Tondano).