Polyrhachis otleti

Identification
Rigato (2016) - A hairy, moderately large revolii-group species with marginate pronotum and propodeal dorsum delimited posteriorly by a pair of well developed ridges.

Two workers from CASC collection are very similar to the types, but have a shining gaster (subopaque in types), due to more superficial sculpturation and much sparser gastral pubescence. The distance between adjacent pubescence elements is much larger than their length; while in types gastral pubescence is much denser (the distance between adjacent hairlets is shorter than their length). Because of the paucity of available material and variability of these features in other Polyrhachis, I consider all of them as conspecific.

Distribution based on Regional Taxon Lists
Afrotropical Region: Central African Republic, Democratic Republic of Congo, Ghana, Nigeria, United Republic of Tanzania.

Nomenclature

 *  otleti. Polyrhachis (Myrma) otleti Forel, 1916: 449 (w.q.m.) DEMOCRATIC REPUBLIC OF CONGO. See also: Bolton, 1973b: 336.

Worker
Rigato (2016) - (n=6) 4 syntype workers + 2 workers from CAS). HL 1.40–1.68, HW 1.19–1.39, CI 81–86, SL 1.68–1.98, SI 140–146, FW 0.47–0.51, FI 36–39, PW 1.07–1.29, WL 1.84–2.25, HTL 1.67–2.00.

Type Material
Rigato (2016) - Syntype workers, gyne and male, DEM. REP. of the CONGO: St. Gabriel (H. Kohl) [examined].