Macroglossum obscura Butler, 1875, Proc. Zool. Soc. Lond. 1875: 5. Type locality: [Indonesia:] Java.
Note. Synonymized with Macroglossum sylvia Boisduval, 1875, by Rothschild & Jordan, 1903, Novit. zool. 9 (suppl.): 658. However, following recognition that the syntypes of Macroglossum sylvia (q.v.) were specimens of two different subspecies of Macroglossum corythus, Macroglossa obscura becomes the oldest available name for the species long referred to as Macroglossum sylvia. Macroglossum sylvia Boisduval, 1875, is now a synonym of Macroglossum corythus pylene C. Felder, 1861.
China: 22.viii (Yunnan); 18.x (Hong Kong).
Larval hostplants. Unknown.
China: Yunnan (Simao/Pu'er); Guangdong; Hong Kong (Lantau Island) - only recorded once (Kendrick, 2010).
Sri Lanka, India, Thailand, southern China, Taiwan, Vietnam, Malaysia (Peninsular, Sarawak, Sabah), Indonesia (Sumatra, Java, Kalimantan, Sulawesi, Maluku), the Philippines.