♂, 2023.06.12. Ha Giang, Vietnam. (photo by K.Saito)		♂, 2023.06.12. Ha Giang, Vietnam. (photo by K.Saito)
♂ genitalia, Ha Giang, Vietnam. (photo by K.Saito)

ON : Polytremis matsuii Sugiyama, 1999 OD : Pallarge 7:11-12, fig.28(♂ genitalia), pl., figs.21(HT,♂), 22(HT,♂Un). TL : Dujiangyan, Sichuan, China. (in coll. H.Sugiyama) Distribution : N.Vietnam, Yunnan, Sichuan, Zhejiang, Jiangxi, Guangxi, Guangdong.

Holotype ♂, 22.Jun.1993. Dujiangyan, Sichuan, China. H.Sugiyama leg. (in coll. H.Sugiyama)
Paratypes 4♂ same locality as holotype (in coll. Sugiyama)

[ VIETNAM ]
Zinaida matsuii ; Saito & Inayoshi,2023b : 56, figs.9,♂,9v,♂(Un),10a-b(♂,genitalia). (Ha Giang)

[ VIETNAM ]
Ha Giang : Lung Cu, 2023.06.12. 2♂, T.Miyagawa (KS).

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Sugiyama, H.,1999 : New Butterflies from Western China (VI)
Pallarge 7:1-14.

Fan, X., Chiba, H., Huang, Z., Fei, W. Wang, M. & Safian, S.,2016 :
Clarification of the Phylogenetic Framework of the Tribe Baorini (Lepidoptera: Hesperiidae: Hesperiinae) Inferred from Multiple Gene Sequences
PloS One 11(7):e0156861.

Tang, J., Huang, Z., Chiba, H., Han, Y., Wang, M. & Fan X.,2017 :
Systematics of the genus Zinaida Evans, 1937 (Hesperiidae: Hesperiinae: Baorini)
PloS One 12(11):e0188883.

Xue, G., Niu, J., Long, J. & Zeng, W.,2018 : New information on the skipper fauna of Guangxi, China (Lepidoptera, Hesperiidae)
Zootaxa 4497(2):258-270.

2023.11.30.