Acanthostichus flexuosus MacKay, 1996: 151, fig. 61 (w.m.) BRAZIL (Santa Catarina). Neotropic.

Primary type information: Primary type material: holotype male. Primary type locality: Brazil: Santa Catarina, Nova Teutonia, 19.iv.1964 (E.S. & C.E. Ross). Primary type depository: MCZC. Secondary type information: Secondary type material: 1 paratype worker. Secondary type locality: same as for holotype. Secondary type depository: MCZC. Type notes: Holotype male and paratype worker are on the same pin.