♂ (dsf), Tak, Thailand.		♂, Phongsaly, Laos.
♂ (dsf), Chiang Mai, Thailand.		♂ (dsf,ab.), Chiang Mai, Thailand.

ON : Ypthima akbar Talbot, 1947 OD : Fauna Br. Ind., Butt. (2nd ed.) 2:324. TL : Karen Hills, Myanmar. (NHML) Distribution : Myanmar, Thailand, Laos, S.Yunnan.

[ THAILAND ]
Ypthima akbar ; Aoki & Uémura,1984 : 88-90. figs.18,19(♂genitalia), 41,♂(dsf). (Chiang Mai: Tam Tab Tao; Chiang Dao; Muang Ngai; Loei: Nam Nao)
Ypthima akbar ; Pinratana,1988 : 35, pl.35, figs.101,♂,♂(Un). (Chiang Mai; Petchaboon)
Ypthima iarba ; Ek-Amnuay,[2007] : 300, pl.122, figs.S100,♂,♂(Un),♂,♂(Un). (Chiang Dao; Nam Nao; 'Mae Hong Son')
Ypthima akbar ; Ek-Amnuay,[2007] : 304, pl.125, figs.S108,♂,♂(Un). (Chiang Mai; Wiang Pa Pao)
Ypthima akbar ; Ek-Amnuay,2012 : 304, pl.125, figs.N144,♂,♂(Un),♂,♂(Un). (Chiang Mai; Wiang Pa Pao)
Ypthima akbar ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai) (accessed: 2023.07.03)
Ypthima akbar ; Kimura et al.,2016 : 202, figs.♂,♂(Un),♂,♂(Un). (Khun Lao Villege; Nan)
Ypthima akbar ; Uémura,2018 : 24. (Tam Tab Tao; Chiang Dao; Chiang Mai; Muang Ngai; Wiang Pa Pao; Khun Lao Villege; Nan; Nam Nao)

[ LAOS ]
Ypthima akbar ; Motono & Negishi,1989 : 66, pl.91, figs.5,♀,6,♀(Un). (Nam Moh; Luang Prabang)
Ypthima akbar ; Osada, Uémura & Uehara,1999 : 211, not fig. (list only)
Ypthima akbar ; Uémura,2005 : 3. figs. 15(map), 38,♂. (Boun Neua)
Ypthima akbar ; Nakamura & Wakahara,2012 : 49.
Ypthima akbar ; Uémura,2018 : 24, fig.8-i,♂,8-j,♂(Un). (Boun Neua; Luang Prabang; Nam Moh)
Ypthima akbar ; Onodera,2022 : 63, pl.184, figs.♂(wsf),♂(wsf,Un),♀(dsf),♀(dsf,Un). (Luang Phabang: Kachat; Luang Nam Tha: Nam Ya)

[ THAILAND ]
Chiang Mai : 5♂ 1♀ (incl. photo & photo by A.Giudici).

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Tak : 1♂.

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[ LAOS ]
Phongsaly : 1♂.

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Luang Nam Tha : 1♀ (photo by H.Onodera).

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Luang Phabang : 1♂ (photo by H.Onodera).

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The butterfly is locally not rare in montane forests at low to moderate elevations (Alt. 350 - 550m).

Talbot, G.,1947 : The Fauna of British India including Ceylon and Burma. Butterflies 2 (Edn.2)
Taylor and Francis, London, 15 +506pp, 2pls., 104 text-figs., with a map.

Uémura, Y.,2018 : A revisional guide to the megalomma-group of the genus Ypthima Hübner (Lepidoptera, Nymphalidae, Satyrinae)
Sci. Rep. Toyohashi Mus. Nat. Hist. 28:11-26.

♂ (dsf), Chiang Mai, Thailand.	♀, Chiang Mai, Thailand. (photo by A.Giudici)
♂ (dsf,ab.), Chiang Mai, Thailand.	♂ (dsf), Chiang Mai, Thailand.

1998.12.08 - 2023.07.31.