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

Primary type information: Type-material: syntype workers (number not stated). Type-localities: Myanmar (“Birmanie”): Moulmein (Hodgson), and Myanmar: Thaungyin Valley (Bingham). Type-depositories: MHNG, NHMB. Type-specimen: CASENT0907217.