♂, Chanthaburi, Thailand.		♀, Chanthaburi, Thailand.

ON : Zeuxidia masoni tannowai Saito & Kimura, 2016 OD : The Butterflies of Thailand based on Yunosuke Kimura Collection, 3:147, figs.♂(PT), ♂(PT,Un), ♂(HT), ♂(HT,Un), ♀(PT), ♀(PT,Un) TL : Kao Soi Dao, Chanthaburi, S.E.Thailand. (RIEB) Distribution : C. & SE.Thailand, Cambodia, Vietnam. ● ssp.masoni ● ssp.??? (unclear) ● ssp.tannowai

Holotype ♂, 13.Feb.1977. Kao Soi Dao, Thailand. Y.kimura (RIEB)
Paratypes : 1♂, 19.Feb.1973. Nakhon Nayok. Y.Kimura (RIEB) ; 3♀, Khao Yai. Y.Kimura (RIEB)

[ THAILAND ]
Zeuxidia amethysta [sic] masoni ; Pinratana,1983 : 54, 63, pl.38, figs.17a♂,♀. (Chanthaburi: Nakhon Nayok: Nakhon Ratchasima)
Zeuxidia masoni ; Ek-Amnuay,[2007] : 328, pl.138, figs.A18,♂,♂(Un),♀,♀(Un). (Chanthaburi)
Zeuxidia masoni ; Ek-Amnuay,2012 : 330, pl.138, figs.N165,♂,♂(Un),♀,♀(Un). (Chanthaburi)
Zeuxidia masoni tannowai ; Kimura et al.,2016 : 147, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Khao Yai: Nakohn Nayok; Kao Soi Dao)
Zeuxidia masoni tannowai ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2020- : Butterflies of Thailand, figs. (Sa Kaeo; Nakhon Nayok; Chachoengsao; Trat) (accessed: 2024.07.04)

[ CAMBODIA ]
Zeuxidia amethysta [sic] masoni ; Woodfield & Murton,2006 : figs,♀,♀(Un),♂,♂(Un). (Botum Sakor NP.)
Zeuxidia masoni tannowai ; Chartier & Kosterin,2022 : 116. (Koh Kong)

[ VIETNAM ]
Zeuxidia amethystus ; Vu,2003 : 57. (Phu Quoc)
Zeuxidia masoni ; Monastyrskii & Devyatkin,2000 : 485. (Thua Thien Hue: Bach Ma; Phong Dien)
Zeuxidia masoni ; Monastyrskii & Devyatkin,2003 : 92. (Quang Nam Da Nang: Song Thanh / Dong Nai: Cat Tien)
Zeuxidia masoni ; Monastyrskii et al.,2006 : 40. (Thua Thien Hue: Nam Dong; A Luoi)
Zeuxidia masoni ; Miyazaki, Saito & Saito,2007c : 39, figs.S-57,♂,♀. (Lam Dong: Dambri; Bao Loc)
Zeuxidia masoni ; Monastyrskii,2011 : 110-111, pl.27, figs.a♂,b♂(Un),c♀,d♀(Un). (C: Nam Dong; Son Thanh; Da Teh / S: Nam Cat Tien; Bao Loc)
Zeuxidia masoni ; Monastyrskii & Devyatkin,2015 : 29. (C / S)

[ THAILAND ]
Nakhon Nayok : 5♂ 5♀ (photo by M.Hayashi and T.Aoyama).

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Chochoengsao : 1♂ (photo by S.Sophonviwatkul).

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Chanthaburi : 1♂ 2♀.

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Trat : 1♀ (photo).

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The butterfly is locally common in montane dense forests mixed with bamboo at low to moderate elevations (Alt. 50 - 800m) and often comes to rotten fruits that has fallen to the ground. They prefer in the dark jungle and suddenly fly out from below and quickly fly away into the bush.

Kimura, Y., Aoki, T., Yamaguchi, S., Uémura, Y. and Saito, T.,2016 : The Butterflies of Thailand based on Yunosuke Kimura Collection, 3. Nymphalidae,
Mokuyosha, Tokyo, 266 pp.

♂, Nakhon Nayok, Thailand. (photo by T.Aoyama)	♀, Nakhon Nayok, Thailand. (photo by T.Aoyama)
♂, Nakhon Nayok, Thailand. (photo by T.Aoyama)	♀, Nakhon Nayok, Thailand. (photo by M.Hayashi)
♀♂, Nakhon Nayok, Thailand. (photo by M.Hayashi)	♀, Nakhon Nayok, Thailand. (photo by M.Hayashi)
♀, Chachoengsao, Thailand. (photo by S.Sophonviwatkul)	♀, Trat, Thailand.

2007.10.10 - 2024.07.31.