♂ (wsf), Chiang Mai, Thailand.		♀ (wsf), Chanthaburi, Thailand.
♂ (dsf), Mae Hong Son, Thailand.		♀ (dsf), Nan, Thailand.
♂ (wsf), Chiang Mai, Thailand.		♀ (isf), Chiang Mai, Thailand.

ON : Nirmula pseudolaeta Moore, 1906 OD : Lep. Ind. 7:44, pl.566, figs.1j-m. TL : "Mergui, Lower Tenasserim" [Myeik, S.Myanmar]. (NHML) Distribution : S.Myanmar, Thailand, Cambodia, Laos, Vietnam.

Nirmula annamica Moore, 1906 : Lep. Ind. 7:46. TL. "Annam ; Siam" [C.Vietnam ; Thailand]. (Unavailable name)

pseudolaeta ; Lectotype ♂, Mergui. designated by Yata,1988. (NHML) ; Yata,1989 : pl.14, figs.1,♂(dsf), 2,♂(dsf,Un).

[ THAILAND ]
Terias venata ; Godfrey,1916 : 116. (Bangkok)
Terias laeta pseudolaeta ; Godfrey,1916 : 116. (Bangkok; Pak Jong)
Terias venata venata ; Godfrey,1930 : 229. (Bangkok)
Terias laeta pseudolaeta ; Godfrey,1930 : 229. (Chiang Rai; Pak Jong; Bangkok)
Eurema laeta sikkima ; Pinratana,1983 : 27, pl.22, fig.47,♂. (Chiang Mai; Loei; Nakhon Nayok; Chonburi; Chanthaburi; Kanchanaburi; Ratchaburi)
Eurema laeta pseudolaeta ; Yata,1989 : 87, pl.13, figs.3,4. (Chiang Mai: Doi Inthanon; Kanchanaburi: Kanchanaburi; Bau Yang)
Eurema laeta pseudolaeta ; Yamaguchi & Aoki,2002 : 18-19, fig.44,♂. (Ubon Ratchathani: Ban Na Pho Krang; Nam Tok Soi Sawan)
Eurema laeta pseudolaeta ; Yamaguchi, Aoki & Akiyama,2005 : 47. (Ubon Ratchathani: Nam Tok Soi Sawan)
Eurema laeta pseudolaeta ; Ek-Amnuay,[2007] : 170, pl.57, figs.Pi51,♂,♂,♂(Un),♀,♀(Un). (Tham Than Lod; Trat)
Eurema laeta pseudolaeta ; Jeratthitikul et al.,2009 : 6, figs.3D♂,E♀. (Chiang Mai: Hauy Hong Krai; Doi Inthanon; Sukhotai: Ram Kham Hang; Phetchabun: Nam Nao; Chaiyaphum: Phu Khiao; Kanchanaburi: Thong Pha Phum; Uthai Thani: Huai Kha Khaeng)
Eurema laeta pseudolaeta ; Kimura et al.,2011 : 142, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Doi Suthep; Phu Kradung; Phu Khiewo; Saraburi; Nakohn Nayok; Wan Nam Khiewo; Bang Phra; Kao Chamaoh; Bangkok; Sai York Noi; Ratchaburi; Hua Hin; Chung Phoon)
Eurema laeta pseudolaeta ; Ek-Amnuay,2012 : 170, pl.57, figs.Pi51,♂,♂,♂(Un),♀,♀(Un). (Tham Than Lod; Trat)
Eurema laeta pseudolaeta ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Kamphaeng Phet; Phetchabun) (accessed: 2024.04.13)
Eurema laeta pseudolaeta ; Chaianunporn & Chaianunporn,2019 : 87. (Chaiyaphum: Chulabhorn Dam)

[ LAOS ]
Eurema laeta pseudolaeta ; Motono & Negishi,1989 : 51, pl.28, figs.5,♂,6,♂(Un). (Vientiane)
Eurema laeta pseudolaeta ; Osada, Uémura & Uehara,1999 : 203, pl.41, figs.♂,♀(Un),♀. (Xiang Khouang)
Eurema laeta pseudolaeta ; Nakamura & Wakahara,2012 : 43.
Eurema laeta pseudolaeta ; Onodera,2022 : 20, pl.76, figs.♂,♂(Un),♀,♀(Un),♀,♀(Un). (Vientiane: Hinkhanna; Xiengkhouang: Phonsavan; Nachan)

[ CAMBODIA ]
Eurema laeta pseudolaeta ; Monastyrskii et al.,2011 : 128. (Phnom Samkos W.S.)
Eurema sp. ; Kosterin,2020 : 315, fig.4(Un). (Preah Vihear)
Eurema laeta pseudolaeta ; Chartier & Kosterin,2022 : 114. (Pursat)

[ VIETNAM ]
Terias laeta pseudolaeta ; Fruhstorfer,1910 : 166. (Tonkin / Annam)
Terias laeta pseudolaeta ; Godfrey,1919 : 465. (S: Daban)
Terias laeta ; Lemée,1950 : 6. (Hagiang)
Terias laeta laeta ; Metaye,1957 : 87. (N / C / S)
Terias laeta laeta f.hib. pseudolaeta ; Metaye,1957 : 87. (N / C / S)
Eurema laeta sikkima ; Shirôzu & Yata,1973 : 123-124, pl.3, figs.1,♂,2,♂(Un),3,♀,4,♀(Un). (S: Cap St. Jacques; Blao; Bobla)
Eurema laeta pseudolaeta ; Luong et al.,2004 : 3, 34, figs.♂,♂(Un). (Cuc Phuong)
Eurema laeta pseudolaeta ; Miyazaki, Saito & Saito,2006 : 14, figs.Pi-29,♂,♀. (Lam Dong: Dambri)
Eurema laeta pseudolaeta ; Monastyrskii & Devyatkin,2015 : 18. (N / C / S)
Eurema laeta pseudolaeta ; Saito et al.,2017 : 77. (S: Nui Cam; Nui Ket)

[ THAILAND ]
Mae Hong Son : 1♂.

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Chiang Mai : 4♂ 2♀ (incl. photo).

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Lamphun : 1♀ (photo).

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Nan : 1♂ 1♀.

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Uttaradit : 1♂ 2♀.

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Phetchabun : 1♂ (photo).

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Chonburi : 1♂ 1♀.

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Chanthaburi : 1♀.

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[ LAOS ]
Champasak : 1♂.

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The butterfly is locally common in open land and secondary forests at low to high elevations (Alt. 150 - 1600m). Both sexes visit flowers and males frequently come to the banks of streams and puddles to suck water. This species has remarkable seasonal variation.

Moore, F.,1905-1907 : Lepidoptera Indica. vol.VII. Rhopalocera, Family Papilionidae, Sub-family Pierinae (continued). 1-182.
L.Reeve & Co., London.

Shirôzu, T. & Yata, O.,1973 : The Genus Eurema of South Viet-Nam and Cambodia
Sieboldia 4(3):121-135.

Yata, O.,1989 : A Revision of the Old World Species of the Genus Eurema Hübner (Lepidoptera, Pieridae).
Part 1. Phylogeny and Zogeography of the Subgenus Terias Swainson and Description of the Subgenus Eurema Hübner.
Bull. Kitakyushu Mus. Nat. Hist. 9:1-103, pl.1-24.

♂ (wsf), Chiang Mai, Thailand.	♀ (wsf, laying egg), Lamphun, Thailand.
♂ (dsf), Chiang Mai, Thailand.	♂ (wsf), Chiang Mai, Thailand.

1996.10.31 - 2024.04.30.