Azteca nigella Emery, 1893 junior synonym of current valid taxon Azteca muelleri Emery, 1893
Azteca nigella Emery, 1893l: 132, pl. 1, figs. 23, 24 (w.) BRAZIL (Santa Catarina). Neotropic.
Primary type information: Primary type material: 2 syntype workers. Primary type locality: Brazil: Santa Catarina (L. Hetschko). Primary type depository: MSNG (perhaps also NHMW). Type notes: Longino, 1991a: 1591, cites 1 worker syntype in MSNG.
Citations

Extant: 0 valid subspecies (1 obsolete combination)