Oligomyrmex alpha Forel, 1905f: 21 (w.) INDONESIA (Java). Indomalaya.

Primary type information: Type-material: holotype (?) minor worker. Type-locality: Indonesia: Java, Tjompea, 11.iii.1904 (K. Kraepelin). Type-depository: MHNG. Type notes: 1) No indication of number of specimens is given. 2) Forel, 1905f: 22, was undecided whether his taxa Carebara alpha and Carebara beta were separate species, or the minor and major workers of a single species.