♂, Yala, Thailand.		♀, Yala, Thailand.
♂, Nakhon Si Thammarat, Thailand.		♀, Ranong, Thailand.
♀, Yala, Thailand.		♀, Yala, Thailand.

ON : Euripus euploeoides C. Felder & R. Felder, 1867 OD : Reise öst. Fregatte Novara. Zool. Theil. (3): 415. TL : "Malacca Interior" [W.Malaysia]. Distribution : P.Thailand (South from Ranong), Langkawi, W.Malaysia. ● ssp.nyctelius ● ssp.euploeoides

Idrusia nyctelius euploeoides ♀-forma isina Corbet, 1947 : Entomologist 80(2): 29. TL. "Malacca" [Malacca, W.Malaysia]. (IFS)

Euripus halitherses pfeifferae ; Pendlebury,1923 : 41. (Nakhon Sri Thammarat: Lan Saka)
Euripus halitherses pfeifferae ; Godfrey,1930 : 300. (Nakhon Sri Thammarat: Lan Saka)
Euripus halitherses pfeifferae ; Godfrey,1932a : 270. (P)
Euripus nyctelius euploeoides ; Pinratana,1979 : 94, figs.N161,♂,♀,♀,♀,♀,♀,♀. (Yala) (in part)
Euripus nyctelius nyctelius ♀f. nyctelius ; Pinratana & Eliot,1996 : 90, pl.67. (Trang; Yala) (in part)
Euripus nyctelius nyctelius ♀f. isa ; Pinratana & Eliot,1996 : 90, pl.67. (Yala)
Euripus nyctelius nyctelius ; RDPB & DNP,2006-2008 : Butterflies in Hala-Bala Forest, fig.[♂](Un). (Narathiwat: Hala Bala) (last update: 2006.12.25 ; accessed: 2024.05.08)
Euripus nyctelius nyctelius ; Les Day,2011-2022 : Samui Butterflies, figs.♂,♂(Un),♀(Un),♀,♀(Un),♀. (Koh Samui) (accessed: 2021.09.26)
Euripus nyctelius nyctelius ; Kimura et al.,2016 : 126-127, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un),♀,♀(Un),♀,♀(Un),♀,♀(Un),♀,♀(Un). (Ka Chong; Than To WF.)
Euripus nyctelius euploeoides ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2019- : Butterflies of Thailand, figs. (Yala) (accessed: 2023.09.06)
Euripus nyctelius euploeoides ; Küppers & Janikorn,2020 : 86-87, fig.Abb.N-012,♂. (Phang Nga)

[ THAILAND ]
Ranong : 2♀.

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Nakhon Si Thammarat : 1♂.

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Satun : 1♂.

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Yala : 7♂ 4♀ (incl. photo).

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The butterfly is locally not uncommon in montane forests at low to moderate elevations (Alt. 450 - 900m). Males often come to the banks of streams and puddles to suck water.
The female is mostly a form of mimicry of Eupleae radamantus (Danainae) and looks exactly like it in flight.

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.
(3): [2] + 379-536, pls.48-74 ([25.Apr].1867), Wien, Carl Gerold's Sohn.

Corbet, A.S.,1947 : Papers on Malayasian Rhopalocera 1. The forms of Idrusia nyctelius (Dbl. 1845) in the Malay Peninsula.
Entomologist 80(2): 28-29.

Masui, A. & Inomata, T.,1995 : Apaturinae of the World (Lepidoptera, Nymphalidae) 7.
Yadoriga 160: 2-16. (in Japanese)

♂, Yala, Thailand.	♂, Yala, Thailand.
♂, Yala, Thailand.	♂, Yala, Thailand.

2019.10.31 - 2024.08.31.