♂, Mae Hong Son, Thailand.		♀, Chiang Mai, Thailand.
♂, Chanthaburi, Thailand.		♀, Chanthaburi, Thailand.
♂, Yala, Thailand.		♂, Mae Hong Son, Thailand.
♂, Narathiwat, Thailand.		♂ genitalia, Mae Hong Son, Thailand.

ON : Astictopterus sindu C. Felder & R. Felder, 1860 OD : Wien. ent. Monats. 4(12):401. TL : Malay Pen. (♂, NHML) Distribution : Myanmar, Thailand, Laos, Cambodia, Vietnam, Yunnan, W.Malaysia, Borneo, Sumatra, Batoe, Siberut, Bali.

Astictopterus xanites Butler, 1870 : Trans. ent. Soc. Lond. 1870(4):510-511. TL. Sarawak. (♂, NHML)
Lychnuchus laetitia Plötz, 1882 : Berl. ent. Z. 26:264. TL. Borneo. (♂)

[ THAILAND ]
Koruthaialos xanites xanites ; Godfrey,1930 : 371. (Prae: Me Song forest; Chiang Mai; Pattani: Khao Kalakiri)
Koruthaialos xanites xanites ; Godfrey,1932a : 275. (P)
Koruthaialos sindu sindu ; Evans,1949 : 277. (W)
Koruthaialos rubecula hector ; Pinratana,1985 : 61, pl.20, fig.121a♂. (in part)
Koruthaialos sindu sindu ; Pinratana,1985 : 61, pl.21, fig.122,♂. (Chiang Mai; Trang; Yala)
Koruthaialos sindu sindu ; Katsuyama et al.,2005 : 63, fig.18,♀. (Umphang: Tha Sai; Umphang)
Koruthaialos sindu sindu ; Ek-Amnuay,[2007] : 784, pl.360, figs.H147,♂,♂(Un),♂[♀],♂[♀](Un). (Yala)
Koruthaialos sindu sindu ; Kimura et al.,2011 : 63, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Chiang Dao; Nakohn Nayok; Wan Nam Khiewo; Kao Soi Dao; Doi Musso; Khlong Tariew; Khlong Naka; Ka Chong; Than To WF.)
Koruthaialos rubecula hector ; Ek-Amnuay,2012 : 836, pl.386, figs.H142a♂,♂(Un). (in part)
Koruthaialos sindu sindu ; Ek-Amnuay,2012 : 838, pl.386, figs.H143,♂,♂(Un),♀,♀(Un). (Yala)
Koruthaialos sindu sindu ; Okamoto et al.,2013 : 6. (Kanchanaburi: Mae Klong Station)
Koruthaialos sindu sindu ; Küppers & Janikorn,2017 : 93-94, fig.Abb.H-138. (Phang Nga)
Koruthaialos sindu sindu ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, figs. (Chiang Mai; Saraburi; Chanthaburi; Yala) (accessed: 2024.06.18)

[ LAOS ]
Koruthaialos sindu sindu ; Motono & Negishi,1989 : 81, col.pl.16 ; pl.114, figs.A7,♂,A8,♂(Un). (Phatong; Luang Prabang; Vientiane; Tha Ngone)
Koruthaialos sindu sindu ; Osada, Uémura & Uehara,1999 : 223, pl.139, fig.♂. (Oudomxay)
Korthaialos [sic] sindu sindu ; Onodera,2009b : 42. (Bolikhamxai: Nahin)
Koruthaialos sindu sindu ; Nakamura & Wakahara,2012 : 59.
Koruthaialos sindu sindu ; Onodera,2022 : 114, pl.251, figs.♂,♂(Un),♀,♀(Un). (Phongsali: Sin Xai; Oudomxai)

[ CAMBODIA ]
Koruthaialos cf. sindu sindu ; Kosterin,2020 : 333, fig.59(Un). (Pursat)
Koruthaialos sindu sindu ; Chartier & Kosterin,2022 : 125. (Pursat)

[ VIETNAM ]
Koruthaialos xanites ; Lemée,1950 : 24. (Hagiang)
Koruthaialos xanites gopaka ; Metaye,1957 : 79. (N / C)
Koruthaialos sindu sindu ; Inoué & Kawazoé,1966 ; 96-97, figs.93,♂,94,♂(Un). (Dinh Quan)
Koruthaialos sindu sindu ; Devyatkin & Monastyrskii,1999 : 168. (Tam Dao; Muong Nhe; Ba Be; Cuc Phuong; Bach Ma)
Koruthaialos sindu sindu ; Ikeda et al.,2001b : 63, figs.3:5,♂,6,♀,5:23(♂genitalia). (Cuc Phuong)
Koruthaialos sindu sindu ; Luong et al.,2004 : 14, 88, figs.♂,♂(Un). (Cuc Phuong)
Koruthaialos sindu ; Monastyrskii et al.,2006 : 45. (Thua Thien Hue: Nam Dong ; A Luoi)
Koruthaialos sindu sindu ; Miyazaki, Saito & Saito,2007b : 11, figs.H-65,♂,♂. (Lam Dong: Dai Duc Me)
Koruthaialos sindu sindu ; Monastyrskii & Devyatkin,2015 : 78. (N / C / S)

[ THAILAND ]
Mae Hong Son : 15♂.

Jan

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May

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Sep

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Dec

Chiang Mai : 6♂ (incl. photo).

Jan

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Dec

Lampang : 1♂ (photo).

Jan

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Phrae : 1♂.

Jan

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Nan : 1♀ (photo).

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Chanthaburi : 5♂ 2♀.

Jan

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Trang : 1♂ ♀.

Jan

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Yala : 8♂.

Jan

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Narathiwat : 2♂.

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The butterfly is locally common in secondary and montane forests at low to moderate elevations (Alt. 150 - 1300m) and is often found at forest edges. Both sexes visit flowers. The discal red band on the UpF is rather variable.

Felder, C. & Felder, R.,1860 : Lepidoptera nova in paeninsula Malayica collecta diagnosibus instructa.
Wien. ent. Monats. 4(12):394-402.

Butler, A.G.,1870 : Descriptions of some new dirunal Lepidoptera, chiefly Hesperiidae.
Trans. ent. Soc. Lond. 1870(4):485-520.

Plötz, C.,1882 : Einige Hesperiinen-Gattungen und deren Arten.
Berl. ent. Z. 26:71-82, 253-266.

♂, Lampang, Thailand.	♂, Chiang Mai, Thailand.
♀, Nan, Thailand.

1999.09.04 - 2024.06.30.