♂, Nan, Thailand.		♀, Nan, Thailand.
♂, Nan, Thailand.		♀, Nan, Thailand.
♂, Nan, Thailand.		♂, Bolikhamxai, Laos.
♂, Sekong, Laos.		♂, Sekong, Laos.

ON : Pieris cisseis pamsi Vitalis, 1921 OD : Faun. Ent. Indochine 1921(3):18-19. TL : Laos ; Tonkin. Distribution : N.Thailand, Laos, N.Vietnam. ● ssp.pamsi ● ssp.aurelia

[ THAILAND ]
Talbotia naganum pamsi ; Ek-Amnuay,[2007] : 144, pl.44, figs.Pi22,♂,♂,♂(Un),♀,♀,♀(Un). (Doi Phu Kha)
Talbotia naganum pamsi ; Kimura et al.,2011 : 160, figs.♂,♂(Un),♀,♀(Un). (Doi Phu Kha)
Talbotia naganum pamsi ; Ek-Amnuay,2012 : 144, pl.44, figs.Pi22,♂,♂,♂(Un),♀,♀,♀(Un). (Doi Phu Kha)
Talbotia naganum pamsi ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2019- : Butterflies of Thailand, figs. (Nan) (accessed: 2022.10.03)

[ LAOS ]
Pieris cisseis f. pamsi ; Dubois & Vitalis,1921 : 19. (Thado; Xieng-Khouang)
Pieris naganum naganum ; Motono & Negishi,1989 : 49, pl.18, figs.5,♂,6,♂(Un). (Phatong; Nam Moh)
Talbotia naganum pamsi ; Osada, Uémura & Uehara,1999 : 202, pl.32, figs.♂,♂(Un),♂,♀. (Lak Sao; Oudomxay)
Talbotia naganum pamsi ; Nimura & Wakahara,2005 : 39. (Laksao)
Talbotia naganum pamsi ; Onodera,2009b : 36-37. (Xieng Kouang: Nam Noen)
Talbotia naganum pamsi ; Nakamura & Wakahara,2012 : 42.
Talbotia naganum pamsi ; Onodera,2022 : 15, pl.62, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Xiengkhouang: Muang Kham; Tha; Bolikhamxai: Lak Sao; Luang Phabang: Marphouk)

[ VIETNAM ]
Pieris cisseis f. pamsi ; Dubois & Vitalis,1921 : 19. (Tonkin: Chapa; Hagiang)
Pieris cisseis pamsi ; Metaye,1957 : 85. (N)
Talbotia naganum pamsi ; Monastyrskii & Devyatkin,2015 : 16. (N) (in part)

[ THAILAND ]
Nan (Pua Dist ; Song Kwae Dist.) : 34♂ 8♀ (incl. photo).

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[ LAOS ]
Xieng Khouang : 1♂.

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Bolikhamxai : 1♂.

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Sekong : 2♂.

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The butterfly is locally very common in montane forests at low to moderate elevations (Alt. 450 - 1300m). Both sexes visit flowers, and males frequently come to the banks of streams and puddles to suck water.
Ek-Amnuay ([2007],2012) reported the first discovery in Thailand by Sukhmalind in 2004, however this is incorrect. It was found by Prasobsuk Sukkit in 1991 at Doi Phu Kha, Nan.

Dubois, E. & Vitalis, de S.R.,1921 : Contribution a la Faune Entomologique de l'Indochine Francçise.
Faune ent. Indo-Chine fr. 1921(3):7-26.

♂, Nan, Thailand.	♂, Nan, Thailand.
♂, Nan, Thailand.	♂, Nan, Thailand.

1996.10.31 - 2022.10.31.