Octostruma stenognatha

The type was collected "in soil cover berlesate from very moist forest".

Identification
Octostruma stenognatha, Octostruma batesi, and Octostruma betschi are all similar in size and head shape and possibly form a clade. Although geographic coverage is poor, the known specimens form an allopatric or parapatric replacement series in South America. (Longino 2013)

Key to Octostruma workers

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil.

Nomenclature

 *  stenognatha. Octostruma stenognatha Brown & Kempf, 1960: 196, figs. 25, 28 (w.q.) BRAZIL.

Type Material
Longino (2013) - Holotype worker: Brazil, São Paulo, Agudos, 23 Jan 1955, in soil cover berlesate from very moist forest (W. W. Kempf, No. 1334) (not examined). Paratype workers, worker intercastes: same data as holotype; São Paulo, Cantareira, 1 Mar 1959 (Kempf & Santos); Rio de Janeiro, Itatiaia (J. F. Zikán, Coll. Borgmeier); Santa Catarina, Nova Teutonia, 27° 11' S, 52° 23' W, Aug 1952 (F. Plaumann) ] (examined). Paratype queen not examined.