Atta fabricator

Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London: British Museum : 167-168

22. Atta fabricator .

Worker major. Length 1 3/4 line.-Head and thorax ferruginous; the abdomen, nodes of the petiole, the femora and tibiae, nearly black, the tarsi pale rufo-testaceous. The head very large, emarginate behind, with the anterior portion finely striated, the vertex being smooth and shining. Thorax narrowed behind, and armed on the metathorax with two minute upright spines.

Worker minor.-Rather smaller than the large worker, of a more slender form; the head of an ordinary size, and entirely pale rufo-testaceous, and very smooth and shining; the abdomen rather darker than the head and thorax.

Female. Length 3 1/2 lines.-The head, thorax and legs pale rufo-testaceous; the disk of the thorax with three longitudinal fuscous stripes; the margins of the scutellum and the base of the metathorax fuscous; the femora and tibiae fuscous, with their base and apex pale; the abdomen and nodes of the petiole nearly black, the former at its extreme base, and the latter beneath, pale.

Male.-Nearly as large as the female, jet-black, smooth and shining; the antennae, articulations of the legs, and the tarsi, pale; wings hyaline and iridescent, with the nervures pale testaceous.

Hab. Brazil (Rio). (Coll. Rev. Hamlet Clark.)