♂, Phetchabun, Thailand.		♀, Phetchabun, Thailand.
♂, Phetchabun, Thailand.		♀, Phetchabun, Thailand.
♂, Lam Dong, Vietnam. (photo by K.Saito)		♀, Trat, Thailand. (photo by THNHM)
♂, Mae Hong Son, Thailand.		♂, Phrae, Thailand.

ON : Pieris rapae var. orientalis Oberthür, 1888 OD : Étud. ent. 5:13. TL : Askold, Russia. Distribution : Thailand, Laos, Vietnam, China, Amur, Ussuri, Sakhalin.

[ THAILAND ]
Pieris rapae ; Ek-Amnuay,[2007] : 140, pl.42, figs.Pi19,♂,♂(Un),♀. (Mae Chaem)
Pieris rapae ssp. ; Kemal et al.,2007 : 2-3, figs.1,♀, 2-6(egg, larva, pupa),7♂,8♂(Un). (Chiang Mai)
Pieris rapae ; Nishimura,2008 : 34, figs.47,♂,48,♂,49,♂(Un),50,♀,51,♀(Un),52,♀,53,♀,54,♀,55,♀,56,♀. (Chiang Mai)
Pieris rapae orientalis ; Kimura et al.,2011 : 161, figs.♂,♂(Un),♀,♀(Un). (Doi Ankaan; Mae Chaem; Nong Mae Na)
Pieris rapae crucivora ; Ek-Amnuay,2012 : 142, pl.43, figs.Pi19,♂,♂(Un),♀. (Mae Chaem)
Pieris rapae orientalis ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2020- : Butterflies of Thailand, fig, (Phetchabun)

[ LAOS ]
Pieris rapae ; Nishimura,2008 : 34. (Luang Nam Tha)
Pieris rapae orientalis ; Nakamura & Wakahara,2012 : 42, pl.1, figs.Pi-17,♂,♂(Un). (Phou Bia)
Pieris rapae orientalis ; Onodera,2022 : 14, pl.61, figs.♂,♂(Un),♀,♀(Un). (Xiengkhouang: Bo Nam Hon; Nachan)

[ VIETNAM ]
Pieris rapae ; Ikeda et al.,1998 : 23, figs.8:17,♂,18,♀,11:44(♂genitalia). (Cuc Phuong)
Pieris rapae ; Luong et al.,2004 : 2. (Cuc Phuong)
Pieris rapae ; Nishimura,2008 : 34. (Ninh Binh; Vinh Phu; Hong Lien Son)
Pieris rapae orientalis ; Monastyrskii & Devyatkin,2015 : 16. (N / C)

[ THAILAND ]
Mae Hong Son : 1♂ 1♀.

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Dec

Chiang Mai : 10♂ 5♀ (incl. photo).

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Lampang : 1♂ (photo).

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Phrae : 1♂.

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Phetchabun : 10♂ 10♀ (incl. photo).

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Trat : 1♀.

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[ VIETNAM ]
Lam Dong : 2♂.

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The butterfly is locally very common in fields of cabbage or field mustard at low to high elevations (Alt. 300 - 1500m), and is also a known pest of these vegetables. Along with the migration of these vegetables, the butterfly is thought to be expanding its distribution.
The populations in this region are uncertain. I tentatively follow the previous treatment, but further taxonomic study is needed.

Oberthür, 1880 : Faune des Lépidoptères de l'ile Askold. Premiere Partie
Étud. ent. 5:1-88, pl.1-9.

Kemal, M., Leksawasdi, P. & Kocak, A.O.,2007: On the Pieridae fauna of Chiang Mai Province in North Thailand (Lepidoptera)
Cent. ent. Stud. Misc. 134:2-8.

Nishimura, M. & Nobayashi, S.,2008 : NOtes on Pieris rapae in Japan and Indochina
Yadoriga 217:13-36. (in Japanese)

♂, Chiang Mai, Thailand.	♀, Chiang Mai, Thailand.
♂+♀ (mating), Chiang Mai, Thailand.	♀ (laying egg), Chiang Mai, Thailand.
♂.♀, Phetchabun, Thailand.
♂,♀, Phetchabun, Thailand. (photo by P.Sukkit)

2007.01.16 - 2022.10.31.