Strumigenys sibyna

Identification
Bolton (2000) - A member of the Strumigenys scotti-group. The type-series of this species was included in Strumigenys scotti by Bolton (1983). The acquisition of more material and re-examination of the type-series of scotti showed that the two are not conspecific. The latter is currently known only from the Seychelle Islands and Madagascar (see under Malagasy fauna).

Distribution based on Regional Taxon Lists
Afrotropical Region: São Tomé & Principe.

Nomenclature

 *  sibyna. Strumigenys sibyna Bolton, 2000: 611 (w.) SÃO TOMÉ & PRÍNCIPE (São Tomé I.).

Worker
Holotype. TL 2.3, HL 0.61, HW 0.42, CI 69, ML 0.30, MI 49, SL 0.38, SI 90, PW 0.26, AL 0.62. Outer margin of mandible shallowly convex and evenly curved. Curved hairs that fringe upper scrobe margin small and narrowly spatulate, only very slightly larger than hairs on leading edge of scape. Scape relatively long (SI 90). Maximum diameter of eye distinctly greater than maximum width of scape; eye with about 20 ommatidia in total. Preocular notch absent. Petiole node in dorsal view longer than broad. Hairs on first gastral tergite short stiff and simple, pointed apically.

Paratypes. TL 2.2-2.4, HL 0.62-0.65, HW 0.42-0.45, CI 67-71, ML 0.30-0.32, MI 47-49, SL 0.38-0.42, SI 89-95, PW 0.27-0.30, AL 0.64-0.66 (9 measured).

Type Material
Holotype worker, Sao Tome & Principe: Sao Tome I., Makambrera, 4000 ft, viii.1949 (B. Malkin).

Paratypes. 1 5 workers from same series as holotype but mostly only with data “Sao Tome (B. Malkin)” (CASC, ).