6. Myrmica carinata. M, obscure fusco-ferruginea; thorace rufofulvo; capite thoraceque carinis irregularibus; metathorace spinis duabus longis armato. Worker. Length 1 1 / 4 lines. Head and abdomen black, with more or less of an obscure ferruginous tinge, particularly at the vertex and base of the abdomen; the thorax and nodes of the petiole ferruginous; the legs rufo-piceous, with the tarsi and articulations ferruginous, the antennae and mandibles ferruginous; the head and thorax with irregular distant longitudinal carinae; the sides of the thorax rugose; the spines on the metathorax long and acute; the abdomen very smooth and shining; the club of the antennae 3 - jointed. Bai. Aru.

Published as part of Smith, F., 1859, Catalogue of hymenopterous insects collected by Mr. A. R. Wallace at the Islands of Aru and Key., pp. 132-158 in Journal of the Proceedings of the Linnean Society of London, Zoology 3 on pages 148-149