♂, Tak, Thailand.		♀, Mae Hong Son, Thailand.
♂, Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, Chanthaburi, Thailand.		♀, Chanthaburi, Thailand.
♂, Nakhon Si Thammarat, Thailand.		♀, Ranong, Thailand.
♂, Yala, Thailand.		♀, Yala, Thailand.

ON : Nacaduba pactolus continentalis Fruhstorfer, 1916 OD : Zool. Meded. 2(2):114. TL : Sikkim ; Bhutan ; Assam ; Birma. Distribution : Nepal, S.India, Bhutan, Sikkim, Assam, Myanmar, Thailand, Laos, Cambodia, Vietnam, Yunnan.

[ THAILAND ]
Nacaduba pactolus continentalis ; Godfrey,1930 : 321. (Prae: Me Song forest; Chiang Rai: Phar Mieng)
Nacaduba pactolus continentalis ; Pinratana,1981 : 61, pl.10, figs.10,♂,11,♀(Un). (Chanthaburi; Chiang Mai; Nakhon Ratchasima; Tak)
Nacaduba pactolus continentalis ; Yamaguchi, Aoki & Akiyama,2005 : 54, fig.26,♂. (Ubon Ratchathani: Phu Pung)
Nacaduba pactolus continentalis ; Ek-Amnuay,[2007] : 580, pl.262, figs.L129,♂,♂(Un). (in part)
Nacaduba pendleburyi pendleburyi ; Ek-Amnuay,[2007] : 580, pl.263, figs.L130,♀,♀(Un). (Ranong)
Nacaduba pactolus continentalis ; Les Day,2011-2022 : Samui Butterflies, fig.[♂](Un). (Koh Samui) (accessed: 2021.05.12)
Nacaduba pactolus continentalis ; Ek-Amnuay,2012 : 602, pl.273, figs.L154,♂,♂(Un),♀,♀(Un). (Trat; Ranong)
Nacaduba pactolus continentalis ; Kimura et al.,2014 : 157, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Doi Suthep; Thung Saleng Luang; Phu Khiewo; Nakohn Nayok; Kao Soi Dao; Kratchin WF; Doi Musso)
Nacaduba pactolus odon ; Kimura et al.,2014 : 157, figs.♂,♂(Un),♀,♀(Un). (Khlong Naka; Ka Chong; Than To WF.)
Nacaduba pactolus continentalis ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Sa Kaeo; Ratchaburi) (accessed: 2021.05.08)

[ LAOS ]
Nacaduba pactolus continentalis ; Motono & Negishi,1989 : 72, pl.103, figs.A3,♂,A4,♂(Un),A5,♀,A6,♀(Un). (Nam Moh; Nam Tan; Tha Ngone; Luang Prabang)
Nacaduba pactolus continentalis ; Osada, Uémura & Uehara,1999 : 215, pl.111, fig.♂(Un). (Lak Sao)
Nacaduba pactolus continentalis ; Nakamura & Wakahara,2012 : 52.
Nacaduba pactolus continentalis ; Onodera,2022 : 81, pl.211, figs.♂,♂(Un),♀,♀(Un). (Khammouan: Nahin; Ban Lao)

[ CAMBODIA ]
Nacaduba pactolus continentalis ; Chartier & Kosterin,2022 : 121, fig.4E,♂(Un). (Koh Kong)

[ VIETNAM ]
Nacaduba pactolus ; Metaye,1957 : 90. (no loc.)
Nacaduba pactolus continentalis ; Miyazaki, Saito & Saito,[2007] : 56, fig.L-50,♀. (Lam Dong: Gung Re)
Nacaduba pactolus continentalis ; Miyazaki et al.,2010 : 25, fig.L-50,♂. (Lam Dong: Dambri; Gung Re)
Nacaduba pactolus continentalis ; Monastyrskii & Devyatkin,2015 : 53. (C / S)

[ THAILAND ]
Mae Hong Son : 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Chiang Mai : 12♂ 5♀ (incl. photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

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Sep

Oct

Nov

Dec

Tak : 7♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Kanchanaburi : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Phetchabun : 1♂ (photo).

Jan

Feb

Mar

Apr

May

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Jul

Aug

Sep

Oct

Nov

Dec

Chaiyaphum : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

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Sep

Oct

Nov

Dec

Chanthaburi : 3♂ 2♀.

Jan

Feb

Mar

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May

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Jul

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Sep

Oct

Nov

Dec

Ranong : 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nakhon Si Thammarat : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

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Dec

Yala : 4♂ 1♀ (incl. photo by S.Atdhabhan).

Jan

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Dec

The butterfly is locally common in montane forests at low to moderate elevations (Alt. 100 - 1000m). Males are territorial on trees at hilltops and frequently come to the banks of streams and puddles to suck water.
Kimura et al.,2014 treated the population from peninsular Thailand as ssp.odon, but I could not find any differences from the continental population. Therefore, I consider all populations from Thailand to be ssp.continentalis.

Fruhstorfer, H.,1916 : Revision der Gattung Nacaduba auf Grund der Morphologie der Generationsorgane
Zool. Meded. 2(14):103-140, pl.4-5.

Tite, G.E.,1963 : A Synonymic List of the Genus Nacaduba and Allied Genera (Lepidoptera: Lycaenidae).
Bull. Br. Mus. nat. Hist. (Ent.) 13(4):69-116, 91 tf, 2 pls. London.

♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♂, Phetchabun, Thailand.
♂, Yala, Thailand. (photo by S.Atdhabhan)

1999.07.11 - 2023.05.31.