Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace. Author Smith, F. text Journal of the Proceedings of the Linnean Society of London, Zoology 1857 2 42 88 http://antbase.org/ants/publications/2588/2588.pdf journal article 2588 D09C3FFA-7EB5-4A2D-A55E-A3229619A2A2 3. Heptacondylus carinatus . H. obscure fusco-ferrugineus; capite thoraceque carinis irregularibus abbreviatis; metathorace spinis duabus longis armato. Worker. Length 2 1/2 lines. Dark fusco-ferruginous, closely resembling H. subcarinatus , but with thicker antennae, and the joints shorter, the scape distinctly shorter and not so slender at the base; the head proportionably larger and much more strongly carinated; the thorax roughly carinated, and having longer and stouter spines; in other. respects agreeing with H. subcarinatus . Hab. Borneo (Sarawak). This may possibly be a form of H. subcarinatus , but the various differences pointed out appear to characterize a distinct species. The insect which I am about to describe, although evidently belonging to the Poneridae, is of such a different and remarkable form, to any insect belonging to any of the sections of the genus Ponera , or any of the subgenera, that I propose to constitute a new genus for its reception; the abdomen of this singular species is formed, as it were, of three nodes, each being a little, longer and wider than the preceding.