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 27- Atta piliventris . Female. Length 2 1/2 lines.-Black: the face anteriorly and the mandibles ferruginous; the apex of the flagellum and the tarsi pale testaceous. Head the same width as the thorax, slightly emarginate behind, and irregularly longitudinally striated. Thorax: the disk very closely and finely striated; the scutellum smooth and shining; the metathorax finely rugose. Abdomen ovate, and covered with fine pale silky pubescence; the head and thorax slightly pubescent. Hab. Brazil (Tejuca). (Coll. Rev. Hamlet Clark.)