Sphinctomyrmex species from Gabon

Referred to by Brown (1975: 76) as collected by W H Gotwald in Gabon in 1974. Apparently decidedly larger than the Ivorian specimen (see key) and dark brown in colour; Brown noted that Gotwald intended to describe it.

The photomontage is collated from http://www.antweb.org/specimen.do?name=casent0004521
Collection Information: Specimen Code CASENT0004521 Locality Zaïre (Democratic Republic of the Congo): Epulu; 01°23'00"N 028°35'00"E 750 m; Collection codes: ANTC1035; Date: Nov 1995; Collected by: S.D. Torti; Method: EC19 sifted litter Habitat: rainforest.
This would appear to be the same as the form collected by Gotwald in Gabon and possibly is that drawn for Bolton (1990) - note the male of rufiventris had the sides of the propodeum rugo-reticulate and large irregular puncturation on the head and alitrunk.