♂, Ha Giang, Vietnam. (photo by K.Saito)		♂, Yen Bai, Vietnam. (photo by K.Saito)
♂, Vinh Phuc, Vietnam. (photo by K.Saito)		♂, Da Nang, Vietnam. (photo by K.Saito)

ON : Lethe gemina yao Sugiyama, 1996 OD : Pallarge 5:1-2, pl.1, figs.1(HT,♂), 2(HT,♂Un). TL : Dayao Mts., Guangxi, S.China. Distribution : Vietnam, Guangxi. ● ssp.yongreni ● ssp.yao

Holotype ♂, 22.Jun.1995. Dayao Mts., Guangxi, S.China. H.Sugiyama leg. (in coll. H.Sugiyama)

[ VIETNAM ]
Lethe gemina yao ; Monastyrskii,2005 : 70, pl.18, figs.3a♂,3b♂(Un). (N: Tam Dao; Na Hang)
Lethe gemina yao ; Monastyrskii & Devyatkin,2015 : 23. (N / C)
Lethe gemina yao ; Huang,2021 : 352-353. (Vietnam)

[ VIETNAM ]
Ha Giang : 1♂.

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Yen Bai : 1♂.

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Vinh Phuc : 1♂.

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Da Nang : 1♂.

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The butterfly is uncommon in montane forests at moderate to high elevations (Alt. 1000 - 2000m).
The populations from Vietnam appear to be ssp.yao rather than ssp.yongreni. Further distributional and taxonomic studies within Vietnam are needed.

Sugiyama, H.,1996 : New Butterflies from Western China (IV).
Pallarge 5:1-11.

Huang, H.,2021 : New or little known butterflies from China - 4 (Lepidoptera: Pieridae, Nymphalidae, Riodinidae, Lycaenidae et Hesperiidae).
Atalanta 52(3):345-413.

1999.07.27 - 2024.11.30.