♂, Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, Trat, Thailand.		♀, Trat, Thailand.
♂, Ranong, Thailand.		♀, Chanthaburi, Thailand.
♂ genitalia, Nan, Thailand.

ON : Hypolycaena othona Hewitson, 1865 OD : Ill. diurn. Lep. Lycaenidae 1(2): 50, pl.22, figs.17,♂, 18,♂(Un). TL : Northern India. Distribution : India to Myanmar, Thailand (North from Nahon Si Thammarat), Laos, Cambodia, Vietnam, China.

[ THAILAND ]
Chliaria othona othona ; Godfrey,1930 : 347. (Prae: Me Song forest; W: Me Wong)
Chliaria othona othona ; Godfrey,1932a : 273. (P)
Chliaria othona othona ; Kawazoé,1964 : 146-147, pl.7, figs.51,♂,52,♂(Un),Textfig.16,♂genitalia. (N: Ping Kong)
Chliaria othona othona ; Pinratana,1981 : 142, pl.25, figs.10,♂,11,♂(Un). (Chiang Mai; Chanthaburi; Chonburi; Kanchanaburi; Nakhon Ratchasima; 'Trang'; Uthai Thani)
Chliaria othona othona ; Katsuyama et al.,2005 : 67, fig.97,♂. (Umphang)
Chliaria othona othona ; Ek-Amnuay,[2007] : 702, pl.321, figs.L390,♂,♂(Un),♂,♂(Un),♀,♀(Un). (Tak)
Chliaria othona othona ; Les Day,2011-2022 : Samui Butterflies, figs.♂,[♂](Un). (Koh Samui) (accessed: 2022.10.06)
Hypolycaena othona othona ; Ek-Amnuay,2012 : 746, pl.342, figs.L412,♂,♂(Un),♀,♀(Un). (Tak)
Hypolycaena othona othona ; Okamoto et al.,2013 : 6. (Kanchanaburi: Mae Klong Station)
Hypolycaena othona othona ; Kimura et al.,2014 : 130, figs.♂,♂(Un),♂,♂(Un),♂,♂(Un). (Chiang Dao; Doi Suthep; Thung Saleng Luang; Phu Khiewo; Kao Soi Dao; Sai York Noi; Khlong Naka; Phang Nga)
Hypolycaena othona othona ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Phetchabun; Chaiyaphum; Nakhon Ratchasima; Sa Kaeo; Trat; Ratchaburi; Nakhon Si Thammarat) (accessed: 2023.09.02)
Hypolycaena othona semanga ; Küppers & Janikorn,2020 : 205, figs.Abb.L-428,♀(Un),429,♂(Un) written as Hypolycaena othona othona. (Phang Nga)

[ LAOS ]
Chliaria othona othona ; Motono & Negishi,1989 : 76, col.pl.15,♂ ; pl.108, figs.A9,♂,A10,♂(Un). (Tha Ngone; Luang Prabang; Vang Vieng)
Chliaria othona othona ; Osada, Uémura & Uehara,1999 : 219. pl.126, figs.♂,♂(Un) (Oudomxay; Thabok)
Chliaria othona othona ; Nimura & Wakahara,2005 : 48. (Thabok)
Chliaria othona othona ; Onodera,2009b : 35, fig.35,♂. (Vientiane: Namsong Riverside)
Hypolycaena othona othona ; Nakamura & Wakahara,2012 : 55.
Hypolycaena othona othona ; Onodera,2022 : 95, pl.229, figs.♂,♂(Un). (Xiengkhouang: Muang Soui)

[ CAMBODIA ]
Chliaria othona othona ; Woodfield & Murton,2006 : fig.♀[♂],♀[♂](Un). (Botum Sakor NP.)
Hypolycaena othona othona ; Chartier & Kosterin,2022 : 123. (Koh Kong)

[ VIETNAM ]
Chliaria othona matiana ; Seitz,1924-1927 : 980. (Tonkin)
Chliaria othona matiana ; Metaye,1957 : 88. (N)
Chliaria othona matiana ; Metaye,1958b : 175. (Foret de Dinh Quan)
Chliaria othona matiana ; Ikeda et al.,2001 : 51,55, figs.5:8,♂,9,♂(Un),7:40(♂genitalia). (Cuc Phuong)
Hypolycaena othona matiana ; Luong et al.,2004 : 12, 81, fig.♀(Un). (Cuc Phuong)
Hypolycaena othona matiana ; Miyazaki, Saito & Saito,2006d : 68, fig.L-133,♂. (Lam Dong: Dambri; Dai Duc Me; Madagui; Dong Nai: Thac Mai; Phu Quoc)
Hypolycaena othona matiana ; Miyazaki et al.,2010 : 25, fig.L-133,♀. (Lam Dong: Dambri)
Hypolycaena othona matiana ; Monastyrskii & Devyatkin,2015 : 68. (N / C / S)

[ THAILAND ]
Mae Hong Son : 1♂.

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Chiang Mai : 9♂ 1♀ (incl. photo).

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Lampang : 1♀ (photo).

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Nan : 6♂ (1♂ genitalia dissected).

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Tak : 2♂.

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Phetchabun : 1♂ (photo).

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Chanthaburi : 1♂ 1♀.

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Trat : 1♂ 1♀.

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Phetchaburi : 1♂.

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Ranong : 2♂.

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Surat Thani : 1♂ (photo by A.Giudici).

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Nakhon Si Thammarat : 1♂ (photo by A.Giudici).

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[ LAOS ]
Xieng Khouang : 1♂ (photo by H.Onodera).

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Xaisomboun : 2♂ (photo by H.Onodera).

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Bolikhamxai : 2♂ (photo by H.Onodera).

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The butterfly is locally common in montane forests at low to moderate elevations (Alt.10 - 1600m). Males frequently come to the banks of streams and puddles to suck water.
The photo example from Nakhon Si Thammarat appears to be rather strange. I provisionally treat it as the nominotypical subspecies, however, further taxonomic studies with many specimens from Nakhon Si Thammarat to Pattani are needed.

Hewitson, W.C.,1865 : Illustrations of diurnal Lepidoptera. Part I. Lycaenidae.
1(2): 37-76, pls.17-30 (24.Jun.1865), London, John Van Voorst.

Fruhstorfer, H.,1912 : Uebersicht der Lycaeniden des Indo-Australischen Gebiets. Begründet auf die Ausbeute und die Sammlung des Autors.
Berl. ent. Z. 56(3/4): 197-272, 4 figs. (Apr.1912)

Seki, Y., Takanami, Y. & Otsuka, K.,1991 : In: Otsuka, K. (Ed.), Butterflies of Borneo. vol.2, No.1. Lycaenidae.
x + 139 pp (Japanese text), x + 113 pp (English text) + 1, 70 pls. Tobishima Corporation. Tokyo, Japan.

Bridges, C.A.,1994 : Catalogue of the Family-Group, Genus-Group and Species-Group Names of the Riodinidae & Lycaenidae (Lepidoptera) of the World.
Urbana, Ill, C.A. Bridges, c1994.

♂, Chiang Mai, Thailand.	♀, Lampang, Thailand.
♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.
♂, Surat Thani, Thailand. (photo by A.Giudici)	♂, Nakhon Si Thammarat, Thailand. (photo by A.Giudici)

1999.07.21 - 2025.09.30.