♂, Vinh Phuc, Vietnam. (photo by K.Saito)		♂, Ha Giang, Vietnam. (photo by K.Saito)
♂, Phetchabun, Thailand.		♀, Chaiyaphum, Thailand.

ON : Neptis namba Tytler,1915 OD : J. Bombay nat. Hist. Soc. 23:510, pl.3, fig.20,♂. TL : Naga Hills. (♂♀, NHML) Distribution : Sikkim to Myanmar, C.Thailand, Laos, Vietnam, Yunnan.

Neptis ananta learmondi Tytler,1940 : J. Bombay nat. Hist. Soc. 42:118. partim ♀ nec ♂. (♀, allotype NHML)
Neptis lucida Lee,1962 : Acta ent. Sinica 11(2):140,145, pl.3, figs.15.♂,16.♂(Un). TL. Yunnan.

[ THAILAND ]
Neptis namba namba ; Kimura,1994 : 18-19, figs.11♂,12♂(Un). (Chaiyaphum: Phu Khiewo)
Neptis namba namba ; Pinratana & Eliot,1996 : 52, pl.32, figs.82,♂,♂(Un). (Chaiyaphum)
Neptis namba namba ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, fig. (Phetchabun)
Neptis namba namba ; Kimura et al.,2016 : 82, figs.♂,♂(Un). ("Chiang Dao" / Phu Khiewo)

[ LAOS ]
Neptis namba namba ; Osada, Uémura & Uehara,1999 : 206, pl.56, figs.♂,♂(Un) (Xam Neua / Vang Vieng)
Neptis namba namba ; Nakamura & Wakahara,2012 : 45.

[ VIETNAM ]
Neptis namba namba ; Eliot,1969 : 100. (Tonkin)
Neptis namba ; Monastyrskii et al.,2006 : 41. (Thua Thien Hue: A Luoi)
Neptis namba namba ; Yokochi et al.,2015 : 40. (Khanh Hoa: Hon Ba)
Neptis namba ; Monastyrskii & Devyatkin,2015 : 37. (N / C)
Neptis namba ; Monastyrskii,2019 : 4(2):78, pl.48, figs.3a,♂,3b,♂(Un). (N: Tam Dao ; Ba Vi / C: Huong Son ; Vu Quang ; Bach Ma ; A Luoi ; Ngoc Linh ; Hon Ba)

[ THAILAND ]
Chiang Mai : 2♂ (photo by RIEB).

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Phetchabun : 5♂ (incl.photo & photo by A.Giudici).

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Chaiyaphum : 6♂ 2♀ (incl.photo & photo by A.Giudici).

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[ LAOS ]
Bolikhamxai : 1♂ (photo by H.Onodera).

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[ VIETNAM ]
Ha Giang : 1♂.

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Vinh Phuc : 1♂.

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This is localized species however is not rare in the habitats. The butterfly is found in montane forest at moderate elevations (alt.700m - 1000m).
In some examples of C.Thailand, the orange marking of the UpF is broader however is variable.
Kimura et al. (2016) recorded it from Chiang Dao, however these specimens were bought from local dealer. There are no other records in this area, and further research is needed to determine if this species is indeed distributed in Northern Thailand.

The difference between ananta and namba.

ananta ♂(Un) namba ♂(Un)

ananta ♂(Un) namba ♂(Un) ♂ underside / Species ananta namba Cilia obscure clearly chequered with white FW, base of space 1b covered with brownish scales without these scales

Tytler, H.,1915 : Notes on Some New and Interesting Butterflies from Manipur and the Naga Hills. Part.2.
J. Bombay nat. Hist. Soc. 23:502-515, 3 pls.

Tytler, H.,1940 : Notes on Some New and Interesting Butterflies chiefly from Burma. Part.2.
J. Bombay nat. Hist. Soc. 42:109-123.

Lee, C.L.,1962 : Some new species of Rhopalocera in China, II.
Acta ent. Sinica 11(2):139-158.

Lang, S.,2009 : A Study on the systematics of Nymphalidae (excepting Satyrinae) from China (Lepidoptera: Papilionoidea)
Beijing, P.R.China.

♂, Phetchabun, Thailand.	♀, Chaiyaphum, Thailand. (photo by A.Giudici)
♂, Phetchabun, Thailand.	♂, Phetchabun, Thailand. (photo by A.Giudici)
♂, Chaiyaphum, Thailand.	♂, Phetchabun, Thailand.

2006.02.20 - 2021.03.31.