''Arhopala arvina'', the purple-brown tailless oakblue, is a species of butterfly belonging to the lycaenid family. It was described by

William Chapman Hewitson William Chapman Hewitson (9 January 1806, in Newcastle upon Tyne – 28 May 1878, in Oatlands Park, Surrey) was a British naturalist. A wealthy collector, Hewitson was particularly devoted to Coleoptera (beetles) and Lepidoptera (butterflies ...

in 1869. It is found in

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...

(Java, Assam, Burma, Mergui, Thailand, Peninsular Malaya, Sumatra and Borneo).

Description

Hindwing quite oval, without small tails. Upper surface in the male lustrous dark ultramarine with a black margin of about 1.5 mm with; female light blue with a marginal band of 4 to 5 mm width. Under surface very characteristic, quite dark violettish-brown, the anal region of the forewing lighter, but not so white as in our figure. In the forewing there are mostly also in and below the cell oval ring-spots which, however, are hardly visible owing to the dark ground-colour.Seitz , A. Band 9: Abt. 2, Die exotischen Großschmetterlinge, Die indo-australischen Tagfalter, 1927, 1197 Seiten 177 Tafeln

Subspecies

*''Arhopala arvina arvina'' (Java) *''Arhopala arvina ardea'' (Evans, 1932) (Assam) *''Arhopala arvina aboe'' de Nicéville, 1895 (southern Burma, Mergui, southern Thailand) *''Arhopala arvina adalitas'' Corbet, 1941 (Peninsular Malaysia, Sumatra, Borneo)

References

Arhopala Butterflies described in 1869 Butterflies of Asia Taxa named by William Chapman Hewitson {{Theclinae-stub