♂, Vinh Phuc, Vietnam. (photo by K.Saito)		♀, Ha Giang, Vietnam. (photo by K.Saito)

ON : Isoteinon lamprospilus formosanus Fruhstorfer,1910 OD : Deut. ent. Zeit. [Iris] 24(5):98-99. TL : ' ‘Formosa [Taiwan]: Chip-Chip, Polisha [Jiji, Puli, Nantou]; Koshun [Hengchun]' [Taiwan]. (NHML) Distribution : N.Vietnam, Taiwan.

[ VIETNAM ]
Isoteinon lamprospilus lamprospilus ; Seitz,1927 : 1066. (Tonkin: Chiem Hoa)
Isoteinon lamprospilus formosanus ; Evans,1949 : 269. (Tonkin)
Isoteinon lamprospilus ; Lemée,1950 : 24. (Hagiang / Backan)
Isoteinon lamprospilus lamprospilus ; Metaye,1957 : 79. (N)
Isoteinon lamprospilus formosanus ; Devyatkin & Monastyrskii,1999 : 167. (Tam Dao; Na Hang; Ba Be; Bu Huong)
Isoteinon lamprospilus formosanus ; Monastyrskii & Devyatkin,2015 : 78. (N / C)

[ VIETNAM ]
Ha Giang : 1♀.

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Vinh Phuc : 1♂.

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Fruhstorfer, H.,1910 : Neue Hesperiden des Indo-Malayischen Faunengebietes und Besprechung verwandter Formen.
Deut. ent. Zeit. [Iris] 24(5):75-104. (1.May.1910)

Evans, W.H.,1949 : A catalogue of the Hesperiidae from Europe, Asia and Australia in the British Museum (Natural History).
i-xix+1-502, pls.1-35. London.

1999.09.04 - 2025.01.31.