Polyrhachis alexisi

This rare, but distinctive species is only known from the original type specimens (Bolton, 1973) and a collection from the Central African Republic (Rigato, 2016).

Identification
The only species of the alexisi group with a combination of four petiolar spines or teeth and immarginate propodeum.

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

Nomenclature

 *  alexisi. Polyrhachis (Cyrtomyrma) alexisi Forel, 1916: 455, fig. 7 (w.q.) DEMOCRATIC REPUBLIC OF CONGO. Combination in P. (Pseudocyrtomyrma): Emery, 1925b: 206; in P. (Myrma): Bolton, 1973b: 346.

Description
Rigato (2016) - HL 1.25, HW 1.11, CI 89, SL 1.41, SI 127, FW 0.30, FI 27, PW 1.00, WL 1.56, HTL 1.35.

Type Material
Rigato (2016) - Syntype workers, DEM. REP. of the CONGO (H. Kohl) [not seen].