Horaga albimacula, the violet onyx, is a species of lycaenid or blue butterfly found in the Indomalayan realm.
Subspecies H. a. albimacula Andamans -white band of the forewing beneath is only continued as a dull brightening on the hindwing. H. a. viola Moore, 1882 Sikkim, Assam, India, Ceylon, Burma H. a. anara Fruhstorfer, 1898 Java much smaller than the nominate and the white spot more roundish. H. a. bellula Fruhstorfer, 1897 Sumbawa -beneath a small, feebly widening spot on the forewing and a deep dark red-brown ground-colour. H. a. albistigmata Moulton, 1912 northern Borneo (Swarawak, Madihit Hills) H. a. anytus (Staudinger, 1889) Palawan H. a. triumphalis Murayama & Sibatani, 1943 Taiwan H. a. ohkuboi H.Hayashi, 1984 NiasSeitz, A. Band 9: Abt. 2, Die exotischen Großschmetterlinge, Die indo-australischen Tagfalter, 1927, 1197 Seiten 177 Tafeln
See also List of butterflies of India List of butterflies of India (Lycaenidae)
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