♂, 1991.03.--. Nan, Thailand.		♂, Nan, Thailand.
♂, Chiang Mai (Omkoi dist.), Thailand.		♂, Tak, Thailand.
♂, 2004.06.08. Houaphan, Laos. (photo by K.Saito)		♂, 2010.07.23. Lam Dong, Vietnam. (photo by K.Saito)

ON : Athyma selenophora yui Huang, 1998 OD : Neue Ent. Nachr. 41:233, pl.7, figs.3a(HT,♂),3b(PT,♂), 4a(HT,♂Un),4b(PT,♂Un). TL : Metok, S.E.Tibet. (♂) Distribution : N.Myanmar, Thailand, Laos, Vietnam, S.E.Tibet.

[ THAILAND ]
Athyma yui ; Koiwaya,2016 29,32. (Nan; Chiang Mai: Omkoi)
Athyma yui ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, fig. (Chiang Mai) (accessed: 2023.06.14)

[ LAOS ]
Athyma yui ; Koiwaya,2016 29,32. (Xam Neua)

[ THAILAND ]
Chiang Mai : 2♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nan : 4♂.
Pua dist. 1991.03.--. 1♂ LC (YI)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Kamphaeng Phet : 2♂ (photo by R.Charoenpon).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Tak : 3♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ LAOS ]
Houaphan : 1♂.
Xam Neua, 2004.06.08. 1♂ LC (KS).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ VIETNAM ]
Lam Dong : 2♂.
near Dalat, 2010.07.23. 1♂ T.Saito (KS).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

This is the first record in Vietnam.
The first record from Thailand was obtained in Pua Dist., Nan in Mar.1991 by a local catcher. The butterfly is locally not rare in montane forests at moderate to high elevations (Alt. 1000 - 1700m).
The species was described as a subspecies of Athyma selenophora, but it was raised to independent species by Koiwaya (2016). He pointed out that the specimens shown above, which I have illustrated as Athyma selenophora on my WEB, are this species. Although, Lang (2012:265) treated it as a synonym of selenophora bahura, I tentatively treat yui as a distinct species following Koiwaya. However, the relationship of Athyma yui, Athyma selenophora and Athyma whitei is still unclear. Further taxonomic study is needed.

Huang, H.,1998 : Research on the butterflies of the Namjagbarwa Region, S.E.Tibet (Lepidoptera: Rhopalocera)
Neue Ent. Nachr. 41:207-264.

Lang, S.Y.,2012 : The Nymphalidae of China (Lepidoptera, Rhopalocera), Part I. Libytheinae, Danainae, Calinaginae, Morphinae, Heliconiinae, Nymphalinae, Charaxinae, Apaturinae, Cyrestinae, Biblidinae, Limenitinae.
Tshikolovets. Czech Rep. 456 pp, 32 col + 41 b/w pls, distribution maps.

Koiwaya, S.,2016 : Description of a new species of genus Sephisa from Myanmar and notes on Athyma selenophora species complex
Gekkan-Mushi 549:23-33. (in Japanese)

♂, Kamphaeng Phet, Thailand. (photo by R.Charoenpon)
♂, Kamphaeng Phet, Thailand. (photo by R.Charoenpon)

2020.10.31 - 2024.03.31.