♂, Chiang Rai, Thailand.		♂, Chiang Mai, Thailand.
♂ genitalia, Chiang Mai, Thailand.

ON : Padraona flava alcon Evans,1932 OD : Ident. Indian Butts. (2nd ed.) : 403. TL : Karens. (♂, NHML) Distribution : Naga Hills, Myanmar, Thailand, Vietnam.

[ THAILAND ]
"Potanthus flavus alcon ; Pinratana,1985 : 101, pl.34, fig.228,♀. (no loc.)"
Potanthus flavus alcon ; Kimura et al.,2011 : 97, figs.♂,♂(Un). (Doi Pha Hom Pok; Khun Lao Villege)
"Potanthus flavus alcon ; Ek-Amnuay,2012 : 892, pl.412, figs.H266,♂,♂(Un). (Wiang Pa Pao)"

[ VIETNAM ]
Potanthus flavus ssp. ; Kishi et al.,2021 : 52, figs.11,♂,11v♂(Un). (Lam Dong: Nong Trai, Da Lat)

[ THAILAND ]
Chiang Rai : 1♂.

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Chiang Mai : 6♂.

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The butterfly is not rare in montane forest at moderate to high elevations (Alt. 1100m - 1800m).
The examination of male genitalia is necessary to identify species of this genus. Therefore, records based only on markings are unreliable and have not been adopted.
According to Kishi et al,2021, the individual from C.Vietnam seems to be slightly different. I tentatively treat it as this taxon, but taxonomic study is needed.

Evans, W.H.,1932 : The identification of Indian butterflies. second edition revised.
Bombay nat. Hist. Soc., Madras : 10+454pp, 32 pls, 9f.

♂, Chiang Rai, Thailand.

2018.05.31 - 2022.02.28.