♂, 2017.04.--. Dong Van, Ha Giang, Vietnam. Holotype (photo by K.Saito)		♀, Mucang Chai, Yen Bai, Vietnam. Paratype (photo by K.Saito)
♂, Nan, Thailand.		♂ genitalia, Ha Giang, Vietnam. (photo by K.Saito)

ON : Dacalana vui Saito & Inayoshi, 2022 OD : Butterflies 88:46-47, figs.27(HT,♂),(HT,♂Un), 28(PT,♀),(PT,♀Un), 63(♂ genitalia), 72d(♂ Fore-tarsus), 73h(♂ FW-venation), 74c(Map). TL : Dong Van, Ha Giang, N.Vietnam. (RIEB) Distribution : N.Thailand (Nan), N.Vietnam.

Holotype ♂, Apr.2017. Dong Van, Ha Giang, N.Vietnam. (RIEB)
Paratype ; 1♀, Apr.2016. Mucang Chai, Yen Bai, N.Vietnam. alt.1700m. (in coll. K.Saito)

[ THAILAND ]
Dacalana inorthodoxa ; Saito & Inayoshi,2018 : 38, figs.106,♂,♂(Un). (Nan)

[ THAILAND ]
Nan : Pua dist., 1998.03.14. 1♂, LC (YI).

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[ VIETNAM ]
Ha Giang : 1♂ (Holotype).

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Yen Bai : 1♀ (Paratype).

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Very large species. The butterfly is rare in montane forests at moderate elevations.
The specimen from Thailand came from an insect dealer and the credibility of the data is slightly doubtful. Thus, it is not included in the type series. Further distributional research is needed.

Saito, K. & Inayoshi, Y.,2022 : A revision of the vidura group of the genus Dacalana Moore, 1884
Butterflies 88:39-63.

2022.08.31.