Strumigenys appretiata

Identification
Bolton (2000) - The three species of the group in which the ventral lobe of the postpetiole is vestigial or absent (appretiata, Strumigenys hadrodens, Strumigenys xenochelyna) are easily separated by the characters given in the keys and the notes appended to hadrodens and xenochelyna.

Strumigenys appretiata group

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Paraguay.

Nomenclature

 *  appretiata. Glamyromyrmex appretiatus Borgmeier, 1954b: 282, figs. 7-9 (w.) BRAZIL. Combination in Pyramica: Bolton, 1999: 1672; in Strumigenys: Baroni Urbani & De Andrade, 2007: 115. See also: Bolton, 2000: 159.

Worker
Bolton (2000) - TL 1.9-2.0, HL 0.52-0.56, HW 0.46-0.50, CI 88-89, ML 0.09-0.10, MI 17-18, SL 0.21-0.23, SI 45-46, PW 0.26-0.28, AL 0.50-0.54 (2 measured).

Ventral spongiform lobe of postpetiole reduced to a minute vestige anteriorly on the sternite. Conspicuous flagellate hairs present at the pronotal humeri, a pair of long fine sub flagellate hairs on the mesonotum and a number of flexuous to flagellate fine hairs on the first gastral tergite. The pronotum is almost entirely smooth, with only the faintest scattered vestiges of longitudinal sculpture, but the mesonotum and propodeum (including the upper half of the declivity) are reticulate-punctate. Basigastral costulae are short and widely spaced, the first gastral tergite is otherwise glassy smooth. Petiole node in dorsal view slightly broader than long to about as broad as long, not markedly transversely rectangular nor with acute prominent anterolateral angles.

Type Material
Bolton (2000) - Holotype worker, BRAZIL: Santa Catarina, Nova Teutonia, x.1953 (F. Plaumann) [examined].