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 13. Polyrhachis modestus . Female. Length 3 lines.-Black: the thorax ovate; the metathorax with two short blunt spines; the scale of the peduncle quadrate, armed above at the lateral angles with an acute spine which curves backwards. The head and thorax very delicately rugose; the flagellum rufo-piceous at the apex beneath; the wings flavo-hyaline, the nervures pale testaceous; the apical joints ofthe tarsi obscurely ferruginous. The abdomen globose, smooth and shining. Hab. Singapore. (Coll. W.W. Saunders, Esq.)