Arhopala arianaga  Corbet, 1941

Arhopala arianaga ♂ Up. Arhopala arianaga ♂ Un. Arhopala arianaga ♂ Up. Arhopala arianaga ♂ Un.
♂, Trang, Thailand. ♀, Trang, Thailand.
Arhopala arianaga ♂ Up. Arhopala arianaga ♂ Un.
♂, Nakhon Si Thammarat, Thailand.

ON : Arhopala ariana arianaga Corbet, 1941
OD : Proc. R. ent. Soc. Lond. (B)10(9):158.
TL : Malaya. (♂, NHML)
Distribution : P.Thailand (Ranong and Southward),
Arhopala arianaga map

Records taken from Literature

Arhopala elopura dama ; Ek-Amnuay,[2007] : pl.280, figs.L228,♂,♂(Un). (in part)
'Arhopala elopura dama ; Les Day,2011-2022 : Samui Butterflies, fig.[♂]. (Koh Phangan) (accessed: 2022.08.01)'
Arhopala arianaga ; Kimura et al.,2014 : 66, figs.♂,♂(Un),♀,♀(Un). (Khlong Naka; Ka Chong; Than To WF.)

Specimens Examined

Nakhon Si Thammarat : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Trang : 5♂ 1♀.
JanFebMarAprMayJun JulAugSepOctNovDec

Satun : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec


The butterfly is locally not rare in montane forests at low elevations (Alt. 30 - 350m).
The populations from P.Thailand seem to be slightly different from the W.Malaysian population. The males have a slightly broader black marginal border, 0.5 - 0.75 mm wide, on the UpF, whereas the W.Malaysian population has a thread-like border up to 0.5 mm wide.
The photo record of 'Arhopala elopura dama' from Koh Phangan is likely to be this taxon, but only a photo of the underside is available. Therefore, it is on hold until a reliable specimen is confirmed. Further taxonomic and distributional studies are needed.


Corbet, A.S.,1941 : A key to the Indo-Malayan species of Arhopala Boisduval (Lepidoptera: Lycaenidae)
Proc. R. ent. Soc. Lond. (B)10(9):149-183, figs.1-114.

Eliot, J.N., 1992 : Cobert, A.S. & Pendlebury, H.M. (Revised by Eliot, J.N.), The Butterflies of the Malay Peninsula, 4th Edition.
x + 595 + [69] pp., 69pp. of plates (some col.). Malayan Nature Society.

2018.12.31 - 2023.07.31.

A Check list of Butterflies in Indo-China, Chiefly from THAILAND, LAOS & VIETNAM. Copyright © 1996- Y.Inayoshi.