♂, Chiang Mai, Thailand.		♂, Chiang Mai, Thailand. (photo by K.Saito)
♂, Yala, Thailand.		♂, Yala, Thailand.
♂, Nan, Thailand.		♂, Lam Dong, Vietnam. (photo by K.Saito)

ON : Charaxes jalysus C. Felder & R. Felder, 1867 OD : Reise öst. Fregatte Novara. Zool. Theil. (3): 438–439, pl.59, fig.5. TL : "Malacca Interior" [W.Malaysia]. (NHML) Distribution : Thailand, Laos, Cambodia, Vietnam, W.Malaysia, Sumatra. ● ssp.jalysus ● ssp.ephebus

Lectotype ♂, West Malaysia. designated by R.L. Smiles,1978. (NHML)
Paralectotypes 1♂ 1♀, West Malaysia. designated by R.L. Smiles,1978. (NHML)

[ THAILAND ]
Eriboea jalysus: Godfrey,1930 : 301. (Pattani: Khao Kalakiri) (partim)
Eriboea jalysus ephebus: Davidson & Macbeth,1938 : 76. (Chonburi: Sriracha; Lampang; Koon Tarn; Prayao: Me Tum forest)
Polyura jalysus ephebus: Pinratana,1979 : 99, figs.N170a♂,♂(Un). (Chiang Mai; Chaiyaphum; Chanthaburi)
Polyura jalysus jalysus: Pinratana,1979 : 99, figs.N170b♂,♂(Un). (Yala; Narathiwat)
Polyura jalysus ephebus: Smiles,1984 : 189. (Nakhon Phanom: 'Tha Uthen'; [Muok-Lek]) (partim)
Polyura jalysus ephebus: Pinratana & Eliot,1996 : 99, pl.76, figs.191a♂,♂(Un). (Chiang Mai; Chaiyaphum; Chanthaburi)
Polyura jalysus jalysus: Pinratana & Eliot,1996 : 99, pl.76, figs.191b♂,♂(Un). (Yala)
Polyura jalysus jalysus: RDPB & DNP,2006–2008 : Butterflies in Hala-Bala Forest, fig.[♂](Un). (Narathiwat: Hala Bala) (last update: 2006.12.27 ; accessed: 2024.05.07)
Polyura jalysus jalysus: Ek-Amnuay,[2007] : 488, pl.218, figs.N204a♂,♂(Un). (Yala)
Polyura jalysus ephebus: Ek-Amnuay,[2007] : 488, pl.218, figs.N204b♂,♂(Un). (Wiang Pa Pao)
Polyura jalysus jalysus: Ek-Amnuay,2012 : 356, pl.151, figs.N187,♂,♂(Un),♂(Un). (Wiang Pa Pao; Yala)
Polyura jalysus jalysus: Okamoto et al.,2013 : 9. (Kanchanaburi: Mae Klong Station)
Polyura jalysus jalysus: Sophonviwatkul et al.,2015– : Butterflies of Thailand, figs. (Chiang Mai; Phetchabun; Sa Kaeo; Ratchaburi) (accessed: 2023.05.04)
Polyura jalysus ephebus: Kimura et al.,2016 : 134, figs.♂,♂(Un). (Phu Khiewo; Kao Soi Dao; Pliewn WF)
Polyura jalysus jalysus: Kimura et al.,2016 : 134, figs.♂,♂(Un). (Than To WF)
Polyura jalysus jalysus: Küppers & Janikorn,2020 : 18–19, figs.Abb.N-116–117. (Phang Nga)

[ LAOS ]
Polyura jalysus jalysus: Motono & Negishi,1989 : 62, pl.77, figs.7,♂,8,♂(Un). (Pakse; NH)
Polyura jalysus jalysus: Osada et al.,1999 : 208, pl.78, figs.♂,♂(Un) (Vang Vieng)
Polyura jalysus jalysus: Onodera,2009b : 43, fig.30,♂(Un). (Bolikhamxai: Phon Si)
Polyura jalysus jalysus: Nakamura & Wakahara,2012 : 47.
Polyura jalysus jalysus: Onodera,2022 : 50, pl.148, figs.♂,♂(Un). (Khammouan: Nahin)

[ CAMBODIA ]
Polyura jalysus jalysus: Chartier & Kosterin,2022 : 116, fig.2B. (Koh Kong; Siem Reap)

[ VIETNAM ]
Eriboea jalysus ephebus: Fruhstorfer,1914 : 722. (Tonkin: Chiem Hoa)
Eriboea jalysus: Vitalis,1919 : 233. (Tonkin)
Eriboea ephebus: Vitalis,1919 : 233. (Tonkin)
Eriboea jalysus f. ephebus: Dubois & Vitalis,1924 : 46. (Tonkin: Chiem-Hoa)
Eriboea jalysus ephebus: Metaye,1957 : 99. (N)
Polyura jalysus jalysus: Smiles,1984 : 188. (Bao Ha; Chiem Hoa; Tong)
Polyura jalisus [sic]: Monastyrskii et al.,2006 : 42. (Thua Thien Hue: Huong Thuy)
Polyura jalysus jalysus: Miyazaki et al.,2007c : 38, fig.N-121,♂. (Lam Dong: Madagui)
Polyura jalysus jalysus: Monastyrskii & Devyatkin,2015 : 42. (N; C; S)
Polyura jalysus jalysus: Monastyrskii,2019 : 4(1):89–90, pl.13, figs.4a♂,4b♂(Un),4c♀. (C: Xuan Lien; Ben En; Pu Mat; Huong Thuy; Ba Na; Bu Gia Map; S: Cat Tien; La Nga)

[ THAILAND ]
Mae Hong Son : 1♂.

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Chiang Mai : 14♂ (incl. photo).

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Lampang : 2♂.

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Phrae : 2♂.

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Nan : 1♂.

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Chaiyaphum : 1♂.

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Chanthaburi : 1♂.

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Yala : 4♂ (incl. photo).

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[ VIETNAM ]
Lam Dong : 1♂.

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The butterfly is locally common in forests at low to moderate elevations (350–1,400 m a.s.l.). . Males are territorial on canopies at hilltops and are frequently observed mud-puddling along stream banks and at puddles.
Some specimens from northern Thailand show a slightly transition to ssp.ephebus. Curiously, with the exception of Pattani and southwards, it has not been found in peninsular Thailand. Further distributional research is needed.

Felder, C. & Felder, R, 1867. Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair. Zoologischer Theil. Zweiter Band. Zweite Abtheilung: Lepidoptera.
Carl Gerold's Sohn, Wien, (3): [2] + 379–536, pls. 48–74. ([25.Apr].1867)

Fruhstorfer, H, 1914. 6. Familie: Nymphalidae. In: Seitz, A. (Ed.), Die Gross-Schmetterlinge der Erde.
Alfred Kernen, Stuttgart, 9: 721–744. (9.Mar.1914)

Smiles, R.L, 1982. The taxonomy and phylogeny of the genus Polyura Billberg (Lepidoptera: Nymphalidae).
Bulletin of the British Museum (Natural History) (Entomology), 44(3): 115–237.

♂, Chiang Mai, Thailand.	♂, Yala, Thailand.
♂, Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.
♂ (territorial behaviour) with P.schreiber, Chiang Mai, Thailand.

2006.12.09 - 2026.08.31.