Crematogaster (Crematogaster) acis Forel - new status

Type location Zaïre (Cremastogaster Sewelli For. r Acis n. stirps, Forel, 1913h: 353, worker) collected at Congo da Lemba, by R. Mayné .

Forel's (1913h) description is at . Quite why a form with distinct short propodeal spines and brown almost black should have been regarded as a subspecies of Crematogaster sewelli is odd and I regard acis (like marnoi) as a distinct mainland Africa species.

The photomontage of the type worker is collated from http://www.antweb.org/specimen.do?name=rmcaent000017765