Descriptions of new species of hymenopterous insects collected by Mr. A. R. Wallace at Celebes. (Part Formicidae) Author Smith, F. text Journal of the Proceedings of the Linnean Society of London, Zoology 1860 5 57 93 http://128.146.250.117/pdfs/2592/2592.pdf journal article 2592 308AABE0-116E-4CA6-A153-B2A689E71E23 7. Polyrhachis vestitus . P. niger, aureo-sericeo vestitus; thorace spinis duabus acutis antice armato; squama integra. Worker. Length 6 lines. Black, and clothed with a pale golden sericeous pile; the legs naked; the mandibles stout, finely striated, the striae interspersed with punctures; the front of the head very prominent. Thorax flattened above, the margins acute and slightly raised; the pro-, meso- and metathorax separated by strongly marked sutures; the prothorax armed at its anterior angles with a stout acute spine, which is compressed and broad at its base. Abdomen: the peduncle unarmed, its margin rounded. Hab. Makassar. This species is nearly three times the size of P. inermis , which it resembles in form, but is covered with silvery pile.