(Apodidae; Ϯ Silver-rumped Spine-tail Swift R. leucopygialis) Gr. ῥαφις rhaphis, ῥαφιδος rhaphidos  needle  < ῥαπτω rhaptō  to sew; ουρα oura  tail; "Genus RHAPHIDURA, Oates.   406. RHAPHIDURA LEUCOPYGIALIS.  THE SMALL BLACK SPINE-TAIL.   Acanthylis leucopygialis, Bl. J. A. S. B. xviii. p. 809.  Cypselus coracinus, Müll., Schleg. Handl. Dierk. i. pp. 221, 479, Vogels, pl. ii. fig. 14.   ...  The whole plumage glossy bluish black, except the rump and upper tail-coverts, which are greyish white with the shafts black; the tail-coverts reach to the tip of the tail, leaving merely the spines exposed.   ...   R. sylvatica occurs in India; it is of small size, and has the abdomen and under tail-coverts pure white." (Oates 1883); "Rhaphidura, Oates, B. Burm. ii. p. 6 (1883) . . . .Type. C. leucopygialis." (Hartert 1892, Cat. Bds. Brit. Mus., XVI,  470); "Rhaphidura Oates, Bds. Burma, 2, 1883, p. 6. Type, by monotypy, Acanthylis leucopygialis Blyth." (Peters 1940, IV, 235).
Var. Rhapidura, Raphidura.
Synon. Alterapus.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 12 December 2018).