♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Ranong, Thailand.		♀, Ranong, Thailand.
♀, Yala (Than To dist.), Thailand.		♀, Ranong, Thailand.

ON : Arhopala horsfieldi eurysthenes Fruhstorfer, 1914 OD : Deut. ent. Zeit. [Iris] 28(2):126. TL : "Tenasserim" [Tanintharyi,Myanmar]. Distribution : P.Thailand (excl. Yala: Betong Dist.), S.Myanmar, Langkawi. ● ssp.eurysthenes ● ssp.basiviridis

[ THAILAND ]
Amblypodia horsfieldi eurysthenes ; Godfrey,1932a : 272. (Takuapa: Kapong)
Amblypodia horsfieldi eurysthenes ; Godfrey,1932b : 327-328. (Takuapa: Kapong)
Narathura horsfieldi eurysthenes ; Evans,1957 : 111. (P)
Arhopala horsfieldi eurysthenes ; Pinratana,1981 : 99, pl.16, figs.10,♂,11,♀,12(Un) ; pl.33, fig.7.('Chiang Mai'; Ranong; Trang)
Arhopala horsfieldi eurysthenes ; Seki,1986 : 18. (Ranong)
Arhopala horsfieldi eurysthenes ; Ek-Amnuay,[2007] : 640, pl.291, fig.L272,♂,♂(Un) ; pl.292. fig.L272,♀,♀(Un),♀(Un). (Krabi; Trang; Ranong)
Arhopala horsfieldi eurysthenes ; Ek-Amnuay,2012 : 676, pl.308, fig.L296,♂,♂(Un),♀,♀(Un),♀(Un). (Krabi; Trang; Ranong)
Arhopala horsfieldi eurysthenes ; Kimura et al.,2014 : 80, fig.♂,♂(Un),♀,♀(Un). (Ranong Hot Spring; Kam Puan; Khlong Naka; Ka Chong; Than To WF.)
'Arhopala pseudomuta ariavana ; Küppers & Janikorn,2020 : 184-185, fig.Abb.L-289, [misidentification of horsfieldi or eumolphus]. (Phang Nga)'

[ THAILAND ]
Ranong : 8♂ 13♀.

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Dec

Nakhon Si Thammarat : 1♂.

Jan

Feb

Mar

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May

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Sep

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Dec

Yala (Than To Dist.) : 1♀.

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The butterfly is common in montane forests at low elevations (Alt. 30 - 450m).
Pinratana (1981) recorded this taxon from 'Chiang Mai' but this is highly doubtful. Therefore, I will not adopt this record until a reliable record is reconfirmed.

Fruhstorfer, H.,1914 : Neue Arhopala Rassen.
Deut. ent. Zeit. [Iris] 28(2):121-137. (30.Jun.1914)

1999.07.18 - 2023.09.30.