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

ON : Lethe verma stenopa Fruhstorfer, 1908 OD : Ent. Zeit. 22(31):127. TL : Chiem-Hoa, Tonkin ; Tandong, Tenasserim. (NHML) Distribution : Myanmar, Thailand, Laos, Vietnam, S.Yunnan, S.Guizhou, Jiangxi, Fujian, Hainan,

Syntype ♂, Chien-Hoa, Vietnam. (NHML. det. P.Ackery,1972)
Syntype ♂, #141527 Tandong, Tenasserim. 4000 ft. (NHML)

[ THAILAND ]
Lethe verma sintica ; Godfrey,1930 : 246-247. ("Prae: Me Song forest")
Lethe verma stenopa ; Pinratana,1988 : 12, pl.16, figs.21,♂,♂(Un). (Chiang Mai)
Lethe verma stenopa ; Ek-Amnuay,[2007] : 242, pl.93, figs.S22,♂,♂(Un). (Doi Pha Hom Pok) (in part)
Lethe verma stenopa ; Ek-Amnuay,2012 : 242, pl.93, figs.N58,♂,♂(Un). (Doi Pha Hom Pok) (in part)
Lethe verma stenopa ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Kanchanaburi) (accessed: 2023.06.30)
Lethe verma stenopa ; Kimura et al.,2016 : 169, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Doi Par Hom Pok; Doi Suthep; Doi Inthanon; Khun Lao Villege; Doi Musso)

[ LAOS ]
Lethe verma f.sintica ; Dubois & Vitalis,1924 : 29. (Nape)
Lethe verma f.stenopa ; Dubois & Vitalis,1924 : 29. (Ban-Soui)
Lethe verma stenopa ; Motono & Negishi,1989 : 64, pl.84, figs.3,♂,4,♂(Un). (Vang Vieng)
Lethe verma stenopa ; Osada, Uémura & Uehara,1999 : 210, pl.91, figs.♂,♀. (Phong Saly)
Lethe verma stenopa ; Uémura,2003 : 4, fig.23 map. (Phong Saly; Lak Sao; Thateng)
Lethe verma stenopa ; Uémura,2006 : 3, fig.10,map. (Xam Neua; Phun Pan; Ban Saleui; Ban Ban; Phon Savan)
Lethe verma stenopa ; Uémura,2007 : 1, fig.4,map. (C: near border to Vietnam)
Lethe verma stenopa ; Uémura,2011 : 2. (S: near Taot)
Lethe verma stenopa ; Nakamura & Wakahara,2012 : 48.
Lethe verma stenopa ; Onodera,2022 : 55, pl.165, figs.♂,♂(Un),♀,♀(Un),♀,♀(Un). (Houaphan: Phou Pan; Xiengkhouang: Tha; Khammouan: Mangkone)

[ VIETNAM ]
Lethe verma stenopa ; Fruhstorfer,1911 : 324. (Tonkin: Chiem Hoa)
Lethe stenopa ; Vitalis,1919 : 223. (Tonkin)
Lethe verma f.stenopa ; Dubois & Vitalis,1924 : 29. (Tonkin: Chiem-Hoa)
Lethe verma stenopa ; Metaye,1957 : 103. (N)
Lethe verma stenopa ; Monastyrskii,2005 : 54-55, pl.13, figs.2a♂,2b♂(Un). (N: Hoang Lien; Tam Dao; Ba Be; Pu Luong / C: Pu Hoat; Pu Mat; Vu Quang; Song Thanh; Ngoc Linh; Kon Plong; Kon Cha Rang; Kon Ka Ka Kinh; Bi Doup; Bao Lam)
Lethe verma stenopa ; Miyazaki, Saito & Saito,2006c : 31, figs.S-13,♂,♀. (Lam Dong: Dambri; Gung Re)
Lethe verma stenopa ; Monastyrskii & Devyatkin,2015 : 22. (N / C)

[ THAILAND ]
Mae Hong Son : 1♂ 2♀.

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Chiang Mai : 9♂ 4♀ (incl. photo).

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Nan : 6♂ 5♀.

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Tak : 1♀.

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[ LAOS ]
Xieng Khouang : 1♀ (photo by H.Onodera).

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

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Bolikhamxai : 1♀ (photo by H.Onodera).

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Houaphan : 1♂ (photo by H.Onodera).

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Sekong : 2♂.

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[ VIETNAM ]
Lam Dong : 6♂ 5♀.

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The butterfly is locally common in montane forests at moderate to high elevations (Alt. 1200 - 2000m). Males are territorial on shrubs.
The female specimen shown in Ek-Amnuay,[2007],2012 is ssp.robinsoni from W.Malaysia.

Fruhstorfer, H.,1908 : Neue ostasiatische Satyriden.
Ent. Zeit. 22(31):127.

♂, Chiang Mai, Thailand.	♀, Chiang Mai, Thailand.
Chiang Mai, Thailand.	♀ + ♂ (mating), Chiang Mai, Thailand.

1998.12.10 - 2024.01.31.