♂, 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)
Lethe gemina yao: Saito & Vu,2020a : 176. (Ha Giang: Dong Van)

[ 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 forests at moderate to high elevations (1,000 - 2,000 m a.s.l.).
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 - 2026.03.31.