♂, Lao Cai, Vietnam. (photo by K.Saito)		♀, Lao Cai, Vietnam. (photo by K.Saito)

ON : Chrysozephyrus masatoshii Koiwaya, 2002 OD : Gekkan-Mushi 381:12, figs.29(HT,♂), 32(HT,♂Un), 31(PT,♀), 32(PT,♀Un). TL : Fan Si Pan, Sapa, N.Vietnam. (♂, KMNH) Distribution : N.Vietnam.

Holotype ♂, 20-25.Jun.2002. Fan Si Pan, Sapa, N.Vietnam. (KMNH)
Paratypes : 10♂ 5♀, Sapa, N.Vietnam.

[ VIETNAM ]
Shirôzuozephyrus masatoshii ; Koiwaya,2007 : 245-246, pl.115, figs.159-1a&(HT,♂),2a(PT,♂),3a(PT,♀),4a(PT,♀) ; pl.116, figs.159-1b(HT,♂Un),2b(PT,♂Un),3b(PT,♀Un),4b(PT,♀Un) (Sapa)
Shirôzuozephyrus masatoshii ; Monastyrskii & Devyatkin,2015 : 59. (by literature)

[ VIETNAM ]
Lao Cai : 1♂ 1♀.

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Koiwaya, S.,2002 : Descriptions of six new species and two new subspecies of tribe Theclini (Lycaenidae) from Myanmar and Vietnam
Gekkan-Mushi 381:5-12.

Koiwaya, S.,2007 : The Zephyrus Hairstreaks of the World.
2 vols, text: 302pp, 256 col pls. Illustrations of adults and immature stages. Mushi-Sha, Japan. (in Japanese)

Saito, K. & Hasegawa, T.,2016 : Description of a new species of the subtribe Theclina (Lepidoptera: Lycaenidae) from Central Vietnam
Butterflies 72:46-48.

2010.04.30 - 2022.04.30.