♂, Nan, Thailand.		♂, Nan, Thailand.
♂ (var.), Nan, Thailand.		♂, Xaignabouli, Laos.

ON : Delias belladonna yukaae Nakano, 1993 OD : An illust. list. Delias World. :11-12, pl.98, figs.1(HT,♂), 2(PT,♂Un),3(PT,♀),4(PT,♀Un). TL : Nan, N.Thailand. Distribution : N.Thailand (Nan), Laos. ● ssp.belladonna ● ssp.hedybia ● ssp.yukaae ● ssp.endoi

Holotype, ♂, Aug.1990. Nan, N.Thailand. (in coll. S.Nakano)
Paratypes 1♂ 1♀, Nan, N.Thailand. (in coll. S.Nakano ; A.Yagishita)

[ THAILAND ]
Delias belladonna yakaae [sic] ; Ek-Amnuay,[2007] : 128, pl.37, figs.Pi7b♂,♂(Un),♀. (Doi Phu Kha)
Delias belladonna yukaae ; Kimura et al.,2011 : 167.
Delias belladonna yukaae ; Ek-Amnuay,2012 : 130, pl.37, figs.Pi7b♂,♂(Un),♀. (Doi Phu Kha)

[ LAOS ]
Delias belladonna ssp. ; Osada, Uémura & Uehara,1999 : 202, pl.28, figs.♂,♂(Un),♀. (Xam Neua)
Delias belladonna yukaae ; Nakamura & Wakahara,2012 : 42.
Delias belladonna yukaae ; Onodera,2022 : 13, pl.57, figs.♂,♂(Un),♀,♀(Un). (Oudomxai; Xiengkhouang: Phou Samsoum)

[ THAILAND ]
Nan : 7♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ LAOS ]
Xaignabouri : 4♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is uncommon in montane forests at moderate to high elevations (Alt. 1300 - 2200m). In the 1980s, it was very common to see many of them sucking water along streams in Nan, Thailand, however, recently their numbers have decreased significantly.
The markings of this taxon are highly variable. Further taxonomic study is needed, including numerous specimens from Laos and N.Vietnam.

Yagishita, A., Nakano, S. & Morita, S.,1993 : An Illustrated List of the Genus Delias Hübner of the World.
409 pls, 384 pp, Khepera Publishers, Tokyo. (in Japanese)

1996.10.31 - 2023.03.31.