♂, Ranong, Thailand.		♀, Ranong, Thailand. (photo by A.Cotton)

ON : Papilio egertoni Distant, 1886 OD : Ann. Mag. nat. Hist. (5)17: 251-252. TL : "Perak" [Perak, W.Malaysia]. Distribution : S.Myanmar, Thailand (South from Kanchanaburi), W.Malaysia.

[ THAILAND ]
Papilio sycorax ; Pendlebury,1923 : 22. (Nakhon Sri Thammarat: Khao Ram; Khao Luang)
Papilio sycorax ; Godfrey,1930 : 206. (Nakhon Sri Thammarat: Khao Ram; Khao Luang, Patalung)
Papilio sycorax ; Godfrey,1932a : 263. (P)
Atrophaneura priapus egertoni ; Pinratana,1977 : 8, figs.P5,♂,♀. (Ranong)
Parides sycorax egertoni ; Pinratana & Eliot,1992 : 12,39, pl.8, figs.5,♂,♀. (Ranong, Surat Thani)
Atrophaneura sycorax sycorax ; Ek-Amnuay,[2007] : 66, pl.4, figs.P7,♂,♀. (Ranong: Muang Shone)
Atrophaneura sycorax egertoni ; Kimura et al.,2011 : 113, figs.♂,♂(Un),♀,♀(Un). (Muang Shone)
Atrophaneura sycorax egertonix ; Ek-Amnuay,2012 : 66, pl.4, figs.P7,♂,♀. (Ranong: Muang Shone)
Atrophaneura sycorax egertoni ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Phetchaburi; Chumphon; Ranong) (accessed: 2024.04.07)

[ THAILAND ]
Kanchanaburi : 1♀ (photo by S.Ruangrit).

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Phetchaburi : 1♀.

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Ranong : 1♂ 2♀ (incl. photo by A.Giudici).

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Nakhon Si Thammarat : 6♀ (sighting by Y.Inayoshi and photo by A.Giudici).

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The butterfly is locally not rare in montane forests at low to moderate elevations (Alt. 30 - 1000m). Both sexes visit flowers.

Distant, W.L.,1886 : Contributions to a Knowledge of Malayan Entomology. Part IV.
Ann. Mag. nat. Hist. (5)17: 251-254.

♀, Ranong, Thailand. (photo by A.Giudici)	♀, Nakhon Si Thammarat, Thailand. (photo by A.Giudici)

1996.09.26 - 2025.05.31.