♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Phetchabun, Thailand.		♀, Phetchabun, Thailand.
♂, Sekong. Laos.		♂ genitalia, Ranong, Thailand.

ON : Celaenorrhinus inaequalis irene Evans, 1941 OD : Entomologist 74:244. TL : Gunong Ijau, Perak, Malaya (NHML) Distribution : Thailand, Laos, Vietnam, W.Malaysia, Borneo, Sumatra.

Type ♂, Gunoung Ijau, Perak, Malaya. (NHML)

[ THAILAND ]
Celaenorrhinus inaequalis irene ; Pinratana,1985 : 29, pl.12, fig.43,♂. (Surat Thani)
Celaenorrhinus inaequalis irene ; Ek-Amnuay,[2007] : 752, pl.345, figs.H54,♂,♂(Un). (Surat Thani)
Celaenorrhinus inaequalis irene ; Kimura et al.,2011 : 36, figs.♂,♂(Un),♀,♀(Un). (Kao Yai; Kam Puan; Muang Shone)
Celaenorrhinus inaequalis irene ; Ek-Amnuay,2012 : 802, pl.370, figs.H52,♂,♂(Un). (Surat Thani)
Celaenorrhinus inaequalis irene ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Sa Kaeo; Nakhon Nayok) (accessed: 2023.05.01)
Celaenorrhinus affinis ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, fig. (Phetchabun) (in part) (accessed: 2024.06.17)

[ LAOS ]
Celaenorrhinus inaequalis irene ; Masui & Uehara,1995 ; 5, pl.2, fig.17,♂. (Saravan)
Celaenorrhinus inaequalis irene ; Osada, Uémura & Uehara,1999 : 222, pl.134, figs.♂,♀. (Thateng)
Celaenorrhinus inaequalis irene ; Nakamura & Wakahara,2012 : 57.
Celaenorrhinus inaequalis irene ; Onodera,2022 : 104, pl.240, figs.♂,♂(Un). (Sekong: Thateng)

[ VIETNAM ]
Celaenorrhinus inaequalis irene ; Devyatkin & Monastyrskii,2002 : 143. (C: Xuan Lien)
Celaenorrhinus inaequalis ; Vu,2003 : 58. (Phu Quoc)
Celaenorrhinus inaequalis irene ; Miyazaki, Saito & Saito,2007b : 6, figs.H-21,♂,♀. (Lam Dong: Dambri)
Celaenorrhinus inaequalis irene ; Monastyrskii & Devyatkin,2015 : 72. (C: Thanh Hoa / S: Dong Nai)

[ THAILAND ]
Phetchabun : 3♂ 2♀ (incl. photo & photo by S.Sophonviwatkul).

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Nakhon Nayok : 3♂ 4♀ (incl. photo by T.Aoyama & M.Hayashi).

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Ranong : 8♂ 2♀.

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Surat Thani : 1♂.

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Nakhon Si Thammarat : 1♂ (photo by A.Giudici).

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[ LAOS ]
Sekong : 2♂ (incl. photo by H.Onodera).

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The butterfly is locally not rare in montane forests at moderate elevations (Alt. 700 - 1100m). Both sexes visit flowers. They often fly out from bushes along the trail and rest on the underside of leaves with their wings spread.

Evans, W.H.,1941 : Changes in Nomemclature affecting Malayan Hesperiidae (Lepidoptera)
Entomologist 74(11):244-246.

Evans, W.H.,1949 : A catalogue of the Hesperiidae from Europe, Asia and Australia in the British Museum (Natural History).
i-xix+1-502, pls.1-35. London.

♂, Phetchabun, Thailand.	♂, Phetchabun, Thailand.
♂, Nakhon Si Thammarat, Thailand. (photo by A.Giudici)

1999.07.31 - 2024.06.30.