Synonymized with Macroglossum sylvia by Rothschild & Jordan, 1903, Novit. zool. 9 (suppl.): 658. Reinstated as a species by Kitching and Rougerie et al., 2018, Biodivers. Data J. 6: e22236.
Following recognition that the syntypes of Macroglossum sylvia (q.v.) are specimens of two different subspecies of Macroglossum corythus, Macroglossa obscura become the oldest available name for the species long referred to as Macroglossum sylvia.
A Horsfield manuscript name made available by Butler.