♂ (dsf), Chiang Mai, Thailand.		♀ (dsf), Chiang Mai, Thailand.
♂ (dsf), Nan, Thailand.		♀ (dsf), Nan, Thailand.
♂, Nan, Thailand.		♀, Nan, Thailand.
♂, Chiang Mai, Thailand.		♂ (dsf), Prachuap Khiri Khan, Thailand.
♂ (dsf), Nan, Thailand.		♂ (dsf), Khammouan, Laos. (photo by K.Saito)

ON : Athyma ranga Moore, [1858] OD : in Horsfield & Moore, Cat. Lep. Mus. East India Co. (1):175-176, pl.5, fig.6,♂. TL : Darjeeling. Distribution : Sikkim, Myanmar, Thailand (excluding S.E.), Laos. ● ssp.ranga ● ssp.obsolescens

Athyma mahesa Moore, [1858] : in Horsfield & Moore, Cat. Lep. Mus. East India Co. (1):176, pl.5, fig.7,♂. TL. Darjeeling.

[ THAILAND ]
Pantoporia ranga obsolescens ; Fruhstorfer,1912 : 629. (Siam)
Pantoporia ranga obsolescens ; Godfrey,1916 : 129. (Prae: Me Song forest; Pak Jong)
Pantoporia ranga obsolescens ; Godfrey,1927 : 124. (N)
Pantoporia ranga obsolescens ; Godfrey,1930 : 285. (Prae: Me Song forest; Pak Jong)
Athyma ranga obsolescens ; Pinratana,1979 : 56, figs.N100,♂,♂(Un). (Chiang Mai; Chaiyaphum; Chonburi) (in part)
Athyma ranga ranga ; Pinratana & Eliot,1996 : 61, pl.40, figs.110a♂,♂(Un). (Chiang Mai; Chaiyaphum; Nakhon Ratchasima; Chonburi) (in part)
Athyma ranga obsolescens ; Yamaguchi & Aoki,2000 : 255, fig.100,♂. (Mukdahan: Phu Mu)
Athyma ranga obsolescens ; Yamaguchi & Aoki,2002 : 28. (Mukdahan: Ban Na Lak)
Athyma ranga obsolescens ; Katsuyama et al.,2005 : 70, fig.162,♀. (Umphang: Tha Sai)
Athyma ranga ranga ; Ek-Amnuay,[2007] : 410, pl.179, figs.N114a♂,♂(Un),♀,♀(Un). (Khao Yai; Chiang Mai)
Athyma ranga obsolescens ; Ek-Amnuay,2012 : 420, pl.183, figs.N279,♂,♂(Un),♀,♀(Un). (Khao Yai; Chiang Mai)
Athyma ranga obsolescens ; Okamoto et al.,2013 : 9. (Kanchanaburi: Mae Klong Station)
Athyma ranga ranga ; Kimura et al.,2016 : 90, figs.♂,♂(Un),♂,♂(Un),♂,♂(Un),♂,♂(Un),♀,♀(Un). (Doi Chiang Dao; Doi Suthep; Dio Pa Chang; Thung Saleng Luang; Phu Khiewo; Kao Yai; Wan Nam Khiewo; Kao Khiewo) (in part)
Athyma ranga ranga ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, figs. (Ratchaburi; Phetchaburi) (accessed: 2023.06.14)

[ LAOS ]
Athyma ranga obsolescens ; Motono & Negishi,1989 : 59, pl.62, figs.7,♂,8,♂(Un). (Luang Prabang; Tha Lat; Tha Ngone)
Athyma ranga obsolescens ; Osada, Uémura & Uehara,1999 : 207, pl.58, figs.♂,♂dsf,♀. (Xaignabouri; Lak Sao; Phong Saly)
Athyma ranga obsolescens ; Onodera,2022 : 38, pl.116, figs.♂,♂(Un),♂,♂(Un). (Oudomxai; Khammouan: Natung)

[ THAILAND ]
Mae Hong Son : 1♂ 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Chiang Mai : 12♂ 2♀ (incl. photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Lampang : 2♂ (photo & photo by T.Laola).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nan : 7♂ 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Kamphaeng Phet : 1♂ (photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Tak : 3♂ 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Phetchabun : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Chaiyaphum : 1♂ (photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Prachuap Khiri Khan : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ LAOS ]
Khammouan : 1♂ 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is common in montane forests at low to moderate elevations (Alt. 400 - 1400m). Males are territorial on shrubs.
The species is highly variable with individual and seasonal variation, which seems to be more pronounced than geographic variation. Further taxonomic study is needed.

Horsfield, T. & Moore, F.,[1858] :
A catalogue of the Lepidopterous Insects in the Museum of the Honourable East-India Company. Vol.1.
London. East India Co.

♂, Lampang, Thailand.	♀, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♀, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.

2014.08.09 - 2023.06.30.