Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. Author Smith, F. text 1858 British Museum London http://antbase.org/ants/publications/8127/8127.pdf book 8127 C86CFDBF-61D9-48EE-9C2E-325FC0462B10 46. Polyrhachis viscosus . Pl. IV. fig. 41. B.M. Worker. Length 2 1/4 lines.-Opake-black: head and thorax finely rugose, abdomen delicately shagreened. The thorax with a short, stout, acute tooth at each of its anterior angles, and also a minute one at the posterior angles of the metathorax; the divisions of the parts of the thorax strongly marked, the disk slightly convex, with the lateral margins acute. The scale of the peduncle incrassate, subquadrate, with a long, acute spine at each of the superior angles, and two shorter ones between them. Abdomen subglobose. Hab. Port Natal.