|White hedge blue|
Male upperside, forewing: black; a medial triangular area that extends from base outwards to the disc white, suffused at base and anteriorly with iridescent blue that spreads upwards on to the black of the costa; along the dorsum the black ground colour is much paler, in most specimens diffuse fuscous. Hindwing: white, basal third and costal margin broadly suffused with fuscous, the fuscous at base posteriorly overlaid with iridescent blue; a subterminal series of fuscous-black dots and a distinct but very slender black anteciliary line. Underside: white very slightly tinged with bluish; markings all fuscous black, minute and very slender. Forewing: a short discocellular line followed by on anteriorly, strongly curved, discal series of very short detached lines and a more or less obsolescent transverse series of subterminal dots. Hindwing: three subbasal dots in transverse order; a short line on the discocellulars; a spot below the middle of the costa with a smaller spot below it; a posterior discal irregular sinuous series of five or six minute spots and a perfectly regular subterminal series of similar spots. Cilia of both forewings and hindwings white. Antennae, head, thorax and abdomen blackish, the antennae ringed with white; beneath: the palpi, thorax and abdomen snow-white.
Female: Very similar. Upperside: the white area much more extended on both forewings and hindwings. On the former it spreads well into the cell, the latter three-fourths of the wing are white; the dusky basal and costal areas much more restricted than in the male. The iridescent blue suffusion is in many specimens entirely absent, in a few very faintly indicated; the subterminal series of black dots so distinct in the male are generally faint and obsolescent. Underside: as in the male but the markings less distinct. Antennae, head, thorax and abdomen as in the male.
- Varshney, R.K.; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing. p. 142. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.
- Beccaloni, G.; Scoble, M.; Kitching, I.; Simonsen, T.; Robinson, G.; Pitkin, B.; Hine, A.; Lyal, C., eds. (2003). "Udara akasa". The Global Lepidoptera Names Index. Natural History Museum. Retrieved April 23, 2018.
- Evans, W.H. (1932). The Identification of Indian Butterflies (2nd ed.). Mumbai, India: Bombay Natural History Society. pp. 221–226, ser no H21.14.
- One or more of the preceding sentences incorporates text from a work now in the public domain: Bingham, C.T. (1907). The Fauna of British India, Including Ceylon and Burma. II (1st ed.). London: Taylor and Francis, Ltd. pp. 318–319.
- One or more of the preceding sentences incorporates text from a work now in the public domain: Swinhoe, Charles (1905–1910). Lepidoptera Indica. Vol. VII. London: Lovell Reeve and Co. pp. 223–224.
- Savela, Markku. "Udara akasa (Horsfield, )". Lepidoptera and Some Other Life Forms. Retrieved July 3, 2018.
- Beccaloni, George; Scoble, Malcolm; Kitching, Ian; Simonsen, Thomas; Robinson, Gaden; Pitkin, Brian; Hine, Adrian; Lyal, Chris. "The Global Lepidoptera Names Index (LepIndex)". Natural History Museum, London. Retrieved 2016-10-15.
- Evans, W.H. (1932). The Identification of Indian Butterflies (2nd ed.). Mumbai, India: Bombay Natural History Society.
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