♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Satun (Koh Tarutao), Thailand.		♂, Yala, Thailand.
♂ genitalia, Satun (Koh Tarutao), Thailand.		♂ genitalia, Yala, Thailand.

ON : Arhopala vihara hirava Corbet, 1941 OD : Proc. R. ent. Soc. Lond. (B)10(9):168. TL : Langkawi. (♀, NHML) Distribution : P.Thailand (Ranong and Southward), S.Myanmar, Langkawi, Laos, Vietnam.

[ THAILAND ]
Arhopala vihara hirava ; Pinratana,1981 : 94, pl.15, fig.12,♂(Un). (Ranong; Trang)
Arhopala vihara hirava ; Seki,1986 : 18, figs.38,♀,39,♀(Un). (Ranong)
Arhopala vihara hirava ; Ek-Amnuay,[2007] : 632, pl.287, figs.L253a♂,♂(Un),♀,♀(Un). (Ranong)
Arhopala vihara hirava ; Les Day,2011-2022 : Samui Butterflies, fig.['♀'](Un). (Koh Samui) (accessed: 2023.05.16)
Arhopala vihara hirava ; Ek-Amnuay,2012 : 666, pl.303, figs.L277,♂,♂(Un). (in part)
Arhopala vihara hirava ; Kimura et al.,2014 : 74, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Hot Samphang; Kam Puan; Khlong Naka; Kao Luang; Ka Chong; Tarutao Is; Thaleban; Than To WF.)
Arhopala vihara hirava ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, fig. (Yala) (accessed: 2023.05.16)

[ LAOS ]
Arhopala vihara ssp. ; Osada, Uémura & Uehara,1999 : 217, pl.117, fig.♂(Un). (Thakhek)
Arhopala vihara ssp. ; Nakamura & Wakahara,2012 : 54.

[ VIETNAM ]
Arhopala vihara ; Monastyrskii et al.,2006 : 43. (Thua Thien Hue: A Luoi)
Arhopala vihara ssp. ; Monastyrskii & Devyatkin,2015 : 61. (C: Quang Nam)

[ THAILAND ]
Ranong : 11♂ 5♀.

Jan

Feb

Mar

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May

Jun

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Sep

Oct

Nov

Dec

Nakhon Si Thammarat : 1♂ 1♀ (incl. photo by A.Giudici).

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Feb

Mar

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May

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Jul

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Dec

Satun (Koh Tarutao) : 3♂.

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Mar

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May

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Sep

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Dec

Yala : 2♂ (incl. photo by S.Atdhabhan, A.Giudici).

Jan

Feb

Mar

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May

Jun

Jul

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Sep

Oct

Nov

Dec

[ VIETNAM ]
Lam Dong : 1♀.

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The butterfly is locally common in montane forests at low elevations (Alt. 10 - 450m).
The populations from P.Thailand seem to be very variable. In particular, the population from Koh Tarutao tends to have a narrower black border on the UpF.
On the other hand, the status of continental populations from Laos and Vietnam is uncertain. I tentatively treat them as this taxon, but 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.

♀, Nakhon Si Thammarat, Thailand. (photo by A.Giudici)

1999.07.18 - 2024.06.30.