♂, Mae Hong Son, Thailand.		♀, Chiang Mai, Thailand.

ON : Ctenoptilum multiguttata Nicéville, 1890 OD : J. Bombay nat. Hist. Soc. 5:221-222, pl.E, fig.10,♂. TL : Burma. (NZC) Distribution : Myanmar, Thailand, Laos, Vietnam, Yunnan.

1♂ Type, Donat, Tenasserim. (NZC) ; 1♀ Type, Houndraw. (NZC) ; Sheela et al.,2019 : 22, figs.♂,♂(Un), 23, figs.♀,♀(Un).

[ THAILAND ]
Ctenoptilum multiguttata ; Godfrey,1930 : 366. (Prae: Me Song forest; 'Pak Jong'; Me Lamoung)
Ctenoptilum multiguttata ; Evans,1949 : 157. (Siam)
Ctenoptilum multiguttatum ; Pinratana,1985 : 44, pl.16, figs.79,♂,♀. (Nong Khai)
Ctenoptilum multiguttata ; Yamaguchi & Aoki,2002 : 11, fig.13,♂. (Mukdahan: Phu Huay Sing; Ban Na Lak; Ban Gok Tum)
Ctenoptilum multiguttata ; Katsuyama et al.,2005 : 62, fig.10,♂. (Umphang)
Ctenoptilum multiguttatum ; Katsuyama et al.,2006 : 44, fig.8,♂. (Nan: Mae Charim; Ban Nam Poon)
Ctenoptilum multiguttatum ; Ek-Amnuay,[2007] : 770, pl.354, figs.H96,♂,♂(Un),♀,♀(Un). (Chiang Mai)
Ctenoptilum multiguttatum ; Kimura et al.,2011 : 49, figs.♂,♂(Un). (Doi Par Hom Pok; Doi Suthep; Maethro; Bung Kahn)
Ctenoptilum multiguttatum ; Ek-Amnuay,2012 : 820, pl.378, figs.H93,♂,♂(Un),♀,♀. (Chiang Mai)
Tapena multiguttata ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2024- : Butterflies of Thailand, figs. (Chiang Mai) (accessed: 2024.06.17)

[ LAOS ]
Ctenoptilum multiguttatum ; Nakamura et al.,2009 : 25, figs.7,♂,♂(Un),♀,♀(Un). (Xieng Khouang)
Ctenoptilum multiguttatum ; Nakamura & Wakahara,2012 : 58, pl.25, figs.He-73,♂,♂(Un),♀,♀(Un). (Xieng Khouang P.)

[ VIETNAM ]
Ctenoptilum multiguttatum ; Kishi et al.,2021 : 51, figs.5,♂,5v♂(Un). (Binh Thuan: Dong Tien)

[ THAILAND ]
Mae Hong Son : 5♂.

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Chiang Mai : 11♂ 1♀ (incl. photo).

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Lampang : 1♂ (photo).

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Tak : 3♂.

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[ LAOS ]
Champasak : 1♂.

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The butterfly is locally common in montane forests at low to moderate elevations (Alt. 300 - 1000m). Males are territorial on shrubs at hilltops and fly in circles at high speed around their territory, and frequently come to the banks of streams and puddles to suck water. The record from Pak Jong, C.Thailand in Godfrey,1930 is somewhat doubtful and it will remain on hold until we are able to examine a definitive specimen.
Zhang et al.,2022 treated genus Ctenoptilum as a subgenus of Tapena on the basis of molecular analysis and morphology.

Nicéville, L. de,1890 : On new and little-known butterflies from the Indian region,
with description of three New genera of Hesperidae.
J. Bombay nat. Hist. Soc. 5(3):199-225, pls.D,E.

Zhang, J., Cong, Q., Shen, J. & Grishin, N.V.,2022 : Taxonoic changes suggested by the genomic analysis of Hesperiidae (Lepidoptera)
Insecta Mundi 0921: 1-135.

♂, Chiang Mai, Thailand.	3♂, Chiang Mai, Thailand.
♂, Lampang, Thailand.	♂, Chiang Mai, Thailand.
7♂ with vasava, Chiang Mai, Thailand.	2♂, Chiang Mai, Thailand.

1999.09.04 - 2024.06.30.