♂, 2020.12.17. Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, 2014.04.30. Khanh Hoa, Vietnam. (photo by K.Saito)		♂, Chiang Mai, Thailand.
♂, Lam Dong, Vietnam. (photo by K.Saito)

ON : Britomartis buto Nicéville, 1895 OD : J. Bombay nat. Hist. Soc. 9(3):308-309, pl.P, fig.41,♂ nec '♀'. TL : "Ataran Valley, Tenasserim, Burma" [Ataran, Mon State, Myanmar]. (NZC) Distribution : Assam, Myanmar, SE.Tibet, Thailand, S.Laos, Cambodia, Vietnam. ● ssp.buto ● ssp.cowani

Type ♂, Ataran Valley, Tenasserim. (NZC) ; Sheela et al.,2019 : 96, figs.♂,♂(Un).

[ THAILAND ]
Bullis buto cowani : Yamaguchi & Aoki,2002 : 39, fig.117,♂. (Ubon Ratchathani: Ban Ba Hai)
'Bullis buto cowani : Ek-Amnuay,[2007] : 690, pl.315, fig.L367,♂(Malaysia).'
'Bullis buto cowani : Ek-Amnuay,2012 : 732, pl.335, figs.L389,♂(Malaysia),♀(Malaysia,Un).'
Bullis buto buto ; Kimura et al.,2014 : 119, figs.♂,♂(Un). (Ban Ba Hai)
Bullis buto buto ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, figs. (Ubon Ratchathani; Nakhon Nayok) (accessed: 2024.06.08)

[ LAOS ]
Bullis buto ; Nakamura & Wakahara,2006 : 32, 34, figs.1,♂,6,♂(Un),2,♀,7,♀(Un). (Pakse)
Bullis buto buto ; Nakamura & Wakahara,2012 : 55, pl.22, figs.Ly-241,♂,♂(Un),♀,♀(Un). (Salavan: 95km north of Pakse)

[ CAMBODIA ]
Bullis buto buto ; Chartier & Kosterin,2022 : 123, fig.4O[♀](Un). (Mondulkiri)

[ VIETNAM ]
Bulis buto buto ; Saito & Inayoshi,2018 : 37, figs.99,♂,♂(Un). (Khanh Hoa)

[ THAILAND ]
Chiang Mai : 7♂ 1♀ (incl. photo).
2020.12.17. 1♂ Y.Inayoshi (YI).

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Nakhon Nayok : 1♀ (photo by S.Sophonviwatkul).

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[ VIETNAM ]
Khanh Hoa : Nha Trang, 2014.04.30. 1♂ T.Miyagawa (KS)

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Lam Dong : Bao Lam, 2015.01.--. 1♂ V.Dan (KS)

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Only one male was recorded from Thailand (25.Feb.1999, Ubon Ratchathani. S.Yamaguchi & T.Aoki) until it was found in Chiang Mai province in 2020. Subsequently it was found in Nakhon Nayok province.
The butterfly is locally not rare in montane forests at moderate elevations (Alt. 750 - 1500m). Males are territorial at hilltops and often settle on tree trunks and branches.

Nicéville, L. de,1895 : On new and little-known Butterflies from the Indo-Malayan Region.
J. Bombay nat. Hist. Soc. 9(3):259-321, pl.N-Q ; (4):366-410.

Huang, H.,2022 : Taxonomy and morphology of Chinese butterflies 2
Lycaenidae: Theclinae: Iolaini: Genera Tajuria Moore, 1881, Pratapa Moore, 1881, Dacalana Moore, 1884, Maneca de Nicéville,1890, Creon de Nicéville, 1896 and Bullis de Nicéville, 1897 (Lepidoptera: Lycaenidae)
Atalanta 53(1/2):136-199.

♂ (territorial behavior), Chiang Mai, Thailand.	♀, Nakhon Nayok, Thailand. (photo by S.Sophonviwatkul)
♂ (territorial behavior), Chiang Mai, Thailand.
♀, Nakhon Nayok, Thailand. (photo by S.Sophonviwatkul)

2006.12.06 - 2024.06.30.