Diacamma scalpratum var. violaceum Forel, 1900f: 317 (diagnosis in key) (w.) MYANMAR. Indomalaya.

Primary type information: Primary type material: syntype workers (number not stated). Primary type localities: Myanmar (“Burma”): Moulmein (Hodgson), Myanmar (“Burma”): Thaungyin Valley (C.T. Bingham). Primary type depositories: MHNG, NHMB. Primary type specimen: CASENT0907217. Type notes: Baroni Urbani, 1973b: 133, cites 1 worker syntype in NHMB.