Polyrhachis lestoni

Identification
Rigato (2016) - An easily recognizable alexisi-group species, whose petiole is armed just with a pair of lateral teeth.

The weak transverse ridge separating the propodeal dorsum from declivity may be virtually absent in some specimens. In such cases dorsum and declivity are differently sculptured: the dorsum is longitudinally, posteriorly convergently striolate, the declivity superficially reticulate-punctate.

Distribution based on Regional Taxon Lists
Afrotropical Region: Central African Republic, Congo, Ghana, Kenya.

Nomenclature

 *  lestoni. Polyrhachis lestoni Bolton, 1973b: 349, figs. 48, 61 (w.) GHANA.

Worker
Rigato (2016) - HL 1.25–1.35, HW 1.12–1.19, CI 86–90, SL 1.28–1.35, SI 112–121, FW 0.29–0.34, FI 26–30, PW 1.08–1.11, WL 1.45–1.60, HTL 1.19–1.30. (n=6)

Type Material
Rigato (2016) - Holotype worker, GHANA: eastern region, Mt. Atewa, primary forest, by pyrethrum knock-down, sample A5/1, 12.vii.1969 (D. Leston)