Strumigenys depilosa

All of the databased specimens of this species show they were found in rainforest. Nine of these were obtained from litter samples with the tenth found in a rotten log.

Identification
Bolton (2000) - A member of the Strumigenys lujae-group. At first glance depilosa resembles Strumigenys lujae but apicoscrobal hairs and pronotal humeral hairs, universal in lujae and its close relatives, are conspicuously absent in depilosa. The divergent costulate sculpture of the pronotum is reminiscent of Strumigenys maynei but in that species the costulae are dense and sharply defined and the spaces between them are glossy. Also, the vertex has 2 or 3 pairs of standing hairs in maynei, not the single thick remiform pair characteristic of depilosa. Finally, the scapes are relatively longer in depilosa (SI 88-91) than in maynei (SI 73-83).

Distribution based on Regional Taxon Lists
Afrotropical Region: Cameroun, Gabon.

Nomenclature

 *  depilosa. Pyramica depilosa Bolton, 2000: 312 (w.) CAMEROUN. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 118

Worker
Holotype. TL 2.5, HL 0.60, HW 0.46, CI 77, ML 0.24, MI 40, SL 0.42, SI 91, PW 0. 37, AL 0.72. Mandibular denticles small and even to base. Upper scrobe margins in full-face view with narrow borders that peter out posteriorly at about the level of the eyes; apicoscrobal hair absent. Dorsum of head finely reticulate-punctate, with small spatulate appressed ground-pilosity and with a single pair of anteriorly curved long stout remiform hairs behind the highest point of the vertex. Pronotal humeral hair absent; pronotal dorsum with sparse inconspicuous narrowly spatulate ground-pilosity. Mesonotum with a single pair of erect stout remiform hairs. Pronotal dorsum with sparse, weak posteriorly divergent costulae, the spaces between which are finely reticulate-punctulate or shagreenate; the whole surface dull. Mesonotum, propodeal dorsum and declivity finely reticulate-punctulate; dorsal surface of petiole node and disc of postpetiole finely sculptured and dull. Sides of alitrunk finely sculptured except for katepisternum which is smooth and glossy. Petiole and postpetiole posterodorsally each with a single pair of stout remiform hairs, the first gastral tergite with similar remiform hairs.

Paratypes. TL 2.4-2.6, HL 0.57-0.60, HW 0.46-0.48, CI 77-81, ML 0.22-0.24, MI 38-42, SL 0.41-0.43, SI 88-91, PW 0.36-0.38, AL 0.68-0.72 (5 measured). As holotype but propodeal teeth variable in size even within the small type-series; in one paratype the teeth of different length on each side of the propodeum.

Type Material
Holotype worker, Cameroun: Mbalmayo, xi.1993, litter sample Heman 7 (N. Stork).

Paratypes. 5 workers with same data as holotype (BMNH, ).

References based on Global Ant Biodiversity Informatics

 * Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65