Formica obscura

Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London: British Museum : 42

141. Formica obscura .

Female. Length 3 lines.-Black: with the legs, thorax, on the sides and beneath, the emargination of the metathorax and the peduncle, ferruginous. Head closely and strongly punctured, thinly covered with pale pubescence; the extreme base and apex of the scape and also the base of the flagellum, the clypeus anteriorly and the mandibles, ferruginous; the antennae and mandibles pubescent. Thorax strongly punctured, oblongovate, with the metathorax abruptly truncated; wings fusco-hyaline, the anterior pair with one marginal, three submarginal and one discoidal cell. Abdomen smooth, shining, and thinly covered with cinereous pubescence.

Hab. Brazil. (Coll. D. Swainson, Esq.)

It will no doubt be necessary hereafter to create a new genus for the reception of this remarkable species: we know only one other Formica which has the wings similarly veined, and that insect is from Australia.