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

ON : Nacaduba atrata gythion Fruhstorfer, 1916 OD : Zool. Meded. 2(14):131. TL : Assam, [India]. (NHML) Distribution : India to Myanmar, Thailand, Laos, Cambodia, Vietnam, Yunnan, Hainan. ● ssp.gythion ● ssp.neon

[ THAILAND ]
Nacaduba akaba gythion ; Godfrey,1930 : 322. (Bangkok)
Nacaduba beroe gythion ; Pinratana,1981 : 62, pl.10, fig.17,♂(Un). (Chiang Mai; Chiang Rai; Chanthaburi; Nakhon Nayok; Nakhon Ratchasima)
Nacaduba beroe gythion ; Yamaguchi & Aoki,2002 : 35, fig.103,♂. (Mukdahan: Ban Na Lak; Ubon Ratchathani: Phu Chong Na Yoi)
Nacaduba kurava euplea ; Ek-Amnuay,[2007] : pl.263, figs.L35a♂,♂(Un). (in part)
Nacaduba beroe gythion ; Ek-Amnuay,2012 : 604, pl.274, figs.L160,♂,♂(Un). (Chanthaburi)
Nacaduba beroe gythion ; Kimura et al.,2014 : 160, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Doi Pha Hom Pok; Doi Angkahn; Chiang Dao; Doi Phui; Doi Suthep; Doi Inthanon; Bang Salok; Doi Pa Chang; Nakohn Nayok; Wan Nam Khiewo; Kao Soi Dao; Kae Saverb)
Nacaduba beroe gythion ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, fig. (Chiang Mai) (accessed: 2023.04.22)

[ LAOS ]
Nacaduba beroe gythion ; Motono & Negishi,1989 : 72, Pl.103, figs.A1,♂,A2,♂(Un). (Luang Prabang; Phatong)
Nacaduba beroe gythion ; Osada, Uémura & Uehara,1999 : 215, pl.111, figs.♂,♂(Un). (Xam Neua)
Nacaduba beroe gythion ; Nakamura & Wakahara,2012 : 52.
Nacaduba beroe gythion ; Suwa et al.,2013 : 26, fig.24,♂(Un). (Phongsali; Phonsy)
Nacaduba beroe ; Suwa et al.,2019 : 30. (Oudomsay; Dong Hua Sao; Nam Kat; Tham Piu; Thana)
Nacaduba beroe gythion ; Onodera,2022 : 80, pl.211, figs.♂,♂(Un),♀,♀(Un). (Bolikhamxai: Lak Sao; Xiengkhouang: Phon Kham)

[ CAMBODIA ]
Nacaduba beroe gythion ; Monastyrskii et al.,2011 : 130. (Phnom Samkos W.S.)
Nacaduba cf. berenice aphya ; Kosterin,2019 : 94, fig.32,♂(Un). (Koh Kong)
'Nacaduba cf. beroe gythion ; Kosterin,2019b : 29, fig.16(Un). (Mondulkiri)'
Nacaduba beroe gythion ; Chartier & Kosterin,2022 : 121. (Koh Kong; Mondulkiri; Pursat)

[ VIETNAM ]
Nacaduba beroe gythion ; Ikeda et al.,2001 : 51, figs.3:11,♂,12,♂(Un),6:24(♂genitalia). (Cuc Phuong)
Nacaduba beroe gythion ; Luong et al.,2004 : 10, 76, figs.♂,♂(Un). (Cuc Phuong)
Nacaduba beroe ; Monastyrskii et al.,2006 : 43. (Thua Thien Hue: Nam Dong)
Nacaduba beroe gythion ; Miyazaki, Saito & Saito,2006d : 57, figs.L-54,♂,♀. (Lam Dong: Dambri; Dai Duc Me)
Nacaduba beroe gythion ; Monastyrskii & Devyatkin,2015 : 53. (N / C: Lam Dong / S: Phu Quoc)

[ THAILAND ]
Mae Hong Son : 17♂.

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Chiang Mai : 22♂ 4♀.

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Lampang : 4♂.

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Phrae : 1♂.

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Umphang : 2♂.

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Chaiyaphum : 20♂ (photo).

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[ LAOS ]
Champasak : 1♂.

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The butterfly is very common in montane forests at low to high elevations (Alt. 350 - 1700m) and is frequently found at hilltops. Males often come to the banks of streams and puddles to suck water.

Fruhstorfer, H.,1916 : Revision der Gattung Nacaduba auf Grund der Morphologie der Generationsorgane.
Zool. Meded. 2(14):103-140, pl.4-5. (30.Aug.1916)

Tite, G.E.,1963 : A Synonymic List of the Genus Nacaduba and Allied Genera (Lepidoptera: Lycaenidae).
Bull. Br. Mus. nat. Hist. (Ent.) 13(4):69-116, 91 tf, 2 pls. London.

♂, Chiang Mai, Thailand.	♂+♀, Chiang Mai, Thailand.
♂, Lampang, Thailand.	♂, Chaiyaphum, Thailand.

1999.07.11 - 2024.04.30.