♂, Chiang Mai, Thailand.		♀, Tak, Thailand.
♂, Nan, Thailand.		♀, Nan, Thailand.

ON : Camena ctesia Hewitson,[1865] OD : Ill. diurn. Lep. Lycaenidae 1:48, 2:pl.20, figs.1,♂,2,♂(Un). TL : Northern India. Distribution : Nepal, N.India, Myanmar, Thailand, Laos, Vietnam, W.Malaysia.

[ THAILAND ]
Camena ctesia agalla ; Davidson & Macbeth,1938 : 83. (Chiang Mai: Doi Suthep)
Ancema ctesia agalla ; Pinratana,1981 : 138, pl.24, figs.8,♂,9,♂(Un). (Chiang Mai; Tak)
Ancema ctesia agalla ; Ek-Amnuay,[2007] : 698, pl.319, figs.L382a♂,♂(Un),♀,♀(Un). (Phrae; Chiang Mai; Doi Pha Hom Pok)
Ancema ctesia ctesia ; Ek-Amnuay,[2007] : 698, pl.319, figs.L382b♂,♂(Un),♀,♀(Un). ('Yala')
Ancema ctesia ctesia ; Ek-Amnuay,2012 : 742, pl.340, figs.L404,♂,♂(Un),♂,♂,♀,♀,♀,♀(Un). (Phrae; Chiang Mai; Doi Pha Hom Pok; 'Yala')
Ancema ctesia ctesia ; Kimura et al.,2014 : 126, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Fang; Doi Chiang Dao; Doi Suthep; Doi Inthanon; Phu Khiewo)
Ancema ctesia ctesia ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Lampang; Kamphaeng Phet; Phetchabun) (accessed: 2023.08.20)

[ LAOS ]
Ancema ctesia agalla ; Motono & Negshi,1989 : 76, pl.107, figs.B11.♂,B12.♂(Un). (Phatong)
Ancema ctesia agalla ; Osada, Uémura & Uehara,1999 : 219. pl.126, figs.♂,♂(Un). (Oudomxay; Xam Neua)
Ancema ctesia ctesia ; Nakamura & Wakahara,2012 : 55, pl.23, figs.Ly-250,♀,♀(Un). (Phou Pan)
Ancema ctesia ctesia ; Onodera,2022 : 95, pl.229, figs.♂,♂(Un). (Bolikhamxai: Lak Sao)

[ VIETNAM ]
Ancema ctesia ctesia ; Monastyrskii & Devyatkin,2015 : 68. (N: Lao Cai / C: Nghe An)

[ THAILAND ]
Mae Hong Son : 2♂.

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Chiang Mai : 15♂ 2♀ (incl. photo).

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Lampang : 4♂ (photo).

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Nan : 1♂.

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Tak : 1♂ 1♀.

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The butterfly is not rare in montane forests at moderate elevations (Alt. 300 - 1500m). Males frequently come to the banks of streams and puddles to suck water.
Ek-Amnuay,[2007],2012 recorded this from 'Yala', however it is quite doubtful. I have never seen any specimens from Peninsular Thailand until now. Further distributional research is needed.

Hewitson, W.C.,1863-1878 : Illustrations of diurnal Lepidoptera, Lycaenidae.
London, van Vorst. x+229pp. and 14a-14h, Suppl. 1-47; pls. (108, numbered;)
1-85, 88-92, 3a,3b,3c, Suppl.I-VII, Ia, Ib, IIIa, IIIb, IVa, Va, Vb. In 8 parts.

♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.

1999.07.21 - 2023.08.31.