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

ON : Ypthima similis Elwes & Edwards, 1893 OD : Trans. ent. Soc. Lond. 41(1):30, pl.1, fig.19. TL : Karen Hills. (NHML) Distribution : Myanmar, Thailand, Laos, C.Vietnam.

Syntypes 6♂, Karen Hills, Burma. (♂ Rh3226, ♂ Rh3227) (NHML)

[ THAILAND ]
Ypthima similis similis ; Aoki & Uémura,1984 : 84. figs.11f-g,14（♂genitalia),36,♂,37,♀. (Chiang Mai: Doi Suthep; Loei: Nam Nao)
Ypthima similis ; Pinratana,1988 : 33, pl.33, fig.91 ; pl.33, figs.91,♂,♀(Un). (Chiang Mai; Petchaboon)
Ypthima similis ; Ek-Amnuay,2012 : 300, pl.122, figs.N134,♂,♂(Un),♀,♀(Un). (Chiang Mai; Phetchabun; Loei)
Ypthima similis ; Kimura et al.,2016 : 195, figs.♂,♂(Un),♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Doi Par Hom Pok; Doi Suthep)

[ LAOS ]
Ypthima similis similis ; Osada, Uémura & Uehara,1999 : 211, pl.96, fig.♂(Un). (Phong Saly)
Ypthima similis ; Uémura,2005 : 2, fig.5 map. (Phong Saly; Oudomxay; Xam Neua; Ban Saleui; Xiang Khouang; Thateng)
Ypthima similis ; Uémura,2006 : 7, fig.40,map. (Ban Phonsaat)
Ypthima similis ; Uémura,2011 : 3. (C: Nakhai to Lak Sao 20km)
Ypthima similis ; Nakamura & Wakahara,2012 : 49.
Ypthima similis ; Onodera,2022 : 61, pl.181, figs.♂(wsf),♂(wsf,Un),♀(wsf),♀(wsf,Un),♂(dsf),♂(dsf,Un). (Xiengkhouang: Tha; Luang Phabang: Chamlong)

[ VIETNAM ]
Ypthima similis ; Uémura & Monastyrskii,2004 : 25, figs.2k-l, 5.3,♂(dsf), 5.4,♂(wsf). (C: Kon Cha Rang; Kon Ka Kinh; Bao Loc; Bao Lam)
Ypthima similis ; Monastyrskii,2005 : 112-113, pl.30, figs.1a♂,1b♂(Un),1c♀,1d♀(Un). (C: Kon Cha Rang; Kon Ka Kinh; Bao Loc ; Bao Lam)
Ypthima similis ; Miyazaki, Saito & Saito,2006c : 34, figs.S-34,♂,♀. (Lam Dong: Dambri; Gung Re)
'Ypthima similis ; Nihira,2009 : 100. (Phu Quoc)'
Ypthima similis ; Monastyrskii & Devyatkin,2015 : 26. (C: Gia Lai to Lam Dong)
Ypthima similis ; Yokochi et al.,2015 : 40. (Khanh Hoa: Hon Ba)

[ THAILAND ]
Chiang Rai : 1♀.

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Chiang Mai : 20♂ 5♀ (incl. photo).

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Lampang : 2♂ (incl. photo).

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Nan : 5♂ 1♀ (incl. photo).

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

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Xieng Khouang : 1♂ (photo by H.Onodera).

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Oudomxai : 1♂ (photo by H.Onodera).

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Champasak : 1♀.

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The butterfly is very common in montane forests at moderate to high elevations (Alt. 900 - 1700m). Both sexes visit flowers.
This species is quite similar to Ypthima affectata, and identification requires examination of the male genitalia. Nihira,2009 recorded this species from Phu Quoc, however it seems rather doubtful. Further research is needed.

Elwes, H.J. & Edwards, J.,1893 :
A revision of the genus Ypthima with special reference to the characters afforded by the ♂ genitalia.
Trans. ent. Soc. Lond. 41(1):1-54, pls.1-.3.

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

1998.12.08 - 2023.07.31.