♂, Mae Hong Son, Thailand.		♀, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, Kanchanaburi, Thailand.		♂, Sekong, Laos.

ON : Catapaecilma major albicans Corbet, 1941 OD : Proc. R. ent. Soc. Lond. (B)10(5):83. TL : "Karen Hills, Burma" [Karen Hills, Kayah State, Myanmar]. Distribution : Myanmar, Thailand, Laos, Cambodia, Vietnam. ● ssp.albicans ● ssp.emas

♂,♀, May.1926. Karen Hills, Burma. W.H.Evans. (NHML)

[ THAILAND ]
Catapaecilma elegans ; Godfrey,1916 : 141. (Prae: Me Song forest)
Catapaecilma elegans major ; Godfrey,1930 : 346. (Prae: Me Song forest)
Catapaecilma major albicans ; Shirôzu & Saigusa,1962 : 53-54, pl.6, figs.47,♂, 48,♂(Un), Textfig.22,♂genitalia. (Chieng Dao)
Catapaecilma major albicans ; Pinratana,1981 : 114, pl.20, figs.13,♂,14,♂(Un) ; pl.32, fig.5♂. (Chiang Mai; Chiang Rai)
Catapaecilma major albicans ; Katsuyama et al.,2006 : 47, fig.69,♂. (Nan: Ban Nam Poon)
Catapaecilma major albicans ; Ek-Amnuay,[2007] : 662, pl.302, figs.L310a♂,♂(Un),♀,♀(Un). (Chiang Mai; Mae Sariang)
Catapaecilma major albicans ; Ek-Amnuay,2012 : 700, pl.320, figs.L334a♂,♂(Un),♀,♀(Un). (Chiang Mai; Mae Sariang)
Catapaecilma major emas ; Ek-Amnuay,2012 : 700, pl.320, figs.L334b♀,♀(Un). (Mae Sariang) (in part)
Catapaecilma major albicans ; Kimura et al.,2014 : 95, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Doi Chiang Dao; Doi Suthep; Phu Khiewo; Wan Nam Khiewo)
Catapaecilma major albicans ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Kamphaeng Phet) (accessed: 2024.06.08)

[ LAOS ]
Catapaecilma major albicans ; Motono & Negishi,1989 : 75, pl.106, figs.B5,♀,B6,♀(Un). (Nam Moh; Nam Ngum Dam)
Catapaecilma major albicans ; Osada, Uémura & Uehara,1999 : 218, pl.122, figs.♂,♀(Un),♀. (Oudomxay; Nam Tha; Lak Sao)
Catapaecilma major albicans ; Nakamura & Wakahara,2012 : 54.
Catapaecilma major albicans ; Onodera,2022 : 92, pl.225, figs.♂,♂(Un),♀,♀(Un). (Xiengkhouang: Tha; Nalam)

[ CAMBODIA ]
Catapaecilma major albicans ; Chartier & Kosterin,2022 : 123, fig.4M. (Koh Kong)

[ VIETNAM ]
Catapoecilma [sic] elegans ; Joannis,1901 : 327. (Tonkin: Cao Bang)
Catapaecilma elegans ; Lemée,1950 : 20. (Hagiang)
Catapaecilma major albicans ; Miyazaki, Saito & Saito,2006d : 65, fig.L-120,♀. (Lam Dong: Dambri)
Catapaecilma major albicans ; Miyazaki et al.,2010 : 25, fig.L-120,♂. (Lam Dong: Dambri)
Catapaecilma major albicans ; Monastyrskii & Devyatkin,2015 : 64. (C: to Lam Dong and Binh Phuoc)
Catapaecilma major emas ; Monastyrskii & Devyatkin,2015 : 64. (N: Bac Can)

[ THAILAND ]
Mae Hong Son : 1♂.

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Chiang Mai : 10♂ 2♀ (incl. photo).

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Phrae : 1♂ (photo).

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Kanchanaburi : 2♂.

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[ LAOS ]
Sekong : 1♂.

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The butterfly is locally common in montane forests at low to moderate elevations (Alt. 400 - 1500m). Males are territorial on trees at hilltops and often settle on tree trunks.

Corbet, A.S.,1941 : Revisional Notes on the genus Catapaecilma BTLR. (Lepid. Rhop.)
Proc. R. ent. Soc. Lond. (B)10(5):81-84.

♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♂ (territorial behavior), Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♂ (territorial behavior), Chiang Mai, Thailand.

1999.07.18 - 2024.06.30.