Monomorium nigricans Heterick, 2006: 134, figs. 20, 65, 66 (w.m.) MADAGASCAR. Malagasy.

Primary type information: Primary type material: holotype worker. Primary type locality: Madagascar: Prov. Toliara, Rés. Cap Sainte Marie, 12.3 km. 262° W Marovato, 25°34’90’’S, 45°10’10’’E, 200 m., 11-15.ii.2002, BLF 5500, sifted litter, spiny forest/thicket (B.L. Fisher, et al.). Primary type depository: CASC. Primary type specimen: CASENT0020200. Secondary type information: Secondary type material: 2 paratype workers, 51 paratype males. Secondary type locality: paratypes with same data as holotype but collection codes 5502, 5504. Secondary type depositories: ANIC, BMNH, CASC, MCZC. Type notes: Numbers of paratypes listed by Heterick, 2006 on p. 134 (above) appears incorrect; on p. 135 he gives measurements for 19 workers and 20 males.