Proceratium diplopyx Brown, 1980b: 337, figs. 1, 2 (w.) MADAGASCAR. Malagasy.

Primary type information: Primary type material: holotype worker. Primary type locality: Madagascar: Prov. Tamatave, E side Baie d’Antongil, Iaraka, ca 1000 m., 26.xi.1969 (J.M. Betsch). Primary type depository: MNHN. Primary type specimen: CASENT0101399. Secondary type information: Secondary type material: 1 paratype worker. Secondary type locality: same as for holotype. Secondary type depository: MCZC.