♂, Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, Chanthaburi, Thailand.		♂, Ranong, Thailand.
♂, Yala, Thailand.		♂ genitalia, Ranong, Thailand.

ON : Baoris austeni Moore, 1884 OD : Proc. zool. Soc. Lond. 1883(4):533. TL : 'Khasia hills [Khasi Hills, Meghalaya, India]; Cherra Pungi, [Meghalaya, India]' [Khasi Hills, Meghalaya, India]. (NHML) Distribution : Nepal, Sikkim, Assam, Myanmar, Thailand, Laos, Vietnam, Hainan, Guangdong, Taiwan, W.Malaysia.

Pamphila fallacina Mabille, 1891 : C. R. Soc. ent. Belg. 35:clxxxi. TL. "Cherra Pungi" [Cherrapunji, Meghalaya, India].
Caltoris onchisa Swinhoe, 1893 : Trans. ent. Soc. Lond. 41(3):323. TL. "Shillong" [Shillong, Meghalaya, India]. (NHML)
Baoris cahira carna Evans, 1926 : J. Bombay nat. Hist. Soc. 31(3):633. TL. 'Rangoon [Yangon, Myanmar]; Tavoy [Dawei, Myanmar]' [Yangon, Myanmar]. (NHML)
Baoris cahira cara Evans, 1932 : Ident. Indian Butts. (2nd ed.) : 413. TL. 'Manipur; Assam' [Manipur, NE.India]. (NHML)
Parnara ranrunna Sonan, 1936 : Zephyrus 6(3/4):215, pl.14, fig.1,♂. TL. "Ranrun, Niitaka-gun, Taichu-shu" [Jenho, Nantou, Taiwan]. (TARI)

austeni : Type, ♂, Khasias. (NHML) ; Huang,2011 : figs.9,♂, 10,♂(Un).
ranrunna : Holotype ♂, (type/red), 10.Mar."1925"[?1926]. Ranrun, S.Isshiki. det. J.Sonan. (TARI) ; Chiba et al.,2009 : 54, figs.25,♂, 26,♂(Un), 27(labels).

[ THAILAND ]
Parnara austeni ; Godfrey,1916 : 146. (Bangkok; Pak Jong)
'Baoris cahira sirius ; Godfrey,1930 : 386. (Pak Jong; Bangkok)'
Baoris cahira carna ; Davidson & Macbeth,1938 : 93.
Caltoris cahira austeni ; Evans,1949 : 452. (Siam)
Caltoris cahira austeni ; Pinratana,1985 : 113, not fig. (Tak; Chanthaburi)
'Caltoris cahira austeni ; Ek-Amnuay,[2007] : 842, pl.387, fig.H301,♂(Laos).'
Caltoris confusa ; Ek-Amnuay,[2007] : 842, pl.387, figs.H304,♂,♂(Un),♀. (Chiang Mai; Than To)
Caltoris cahira austeni ; Kimura et al.,2011 : 107, figs.♂,♂(Un),♀,♀(Un). (Chiang Dao; Kratching WF; Doi Musso; Ranong Hot Spring; Kam Puan; Khlong Naka; Ka Chong; Than To WF.)
Caltoris confusa ; Kimura et al.,2011 : 107. (by literature)
'Caltoris cahira austeni ; Ek-Amnuay,2012 : 906, pl.419, fig.H298,♂(Laos).'
Caltoris confusa ; Ek-Amnuay,2012 : 908, pl.419, figs.H301,♂,♂(Un),♀. (Chiang Mai; Thanto)
'Caltoris bromus ; Küppers & Janikorn,2017 : 136, figs.Abb.H-297-298. (Phang Nga)'
Caltoris cahira austeni ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, figs., Early Stages. (Nakhon Nayok) (accessed: 2024.06.18)

[ LAOS ]
Caltoris cahira austeni ; Motono & Negishi,1989 : 85, pl.118, figs.A7,♂,A8,♂(Un). (Pakse; Vang Vieng)
Caltoris cahira austeni ; Osada, Uémura & Uehara,1999 : 226, pl.143, fig.♂. (Nam Tha)
Caltoris cahira austeni ; Nakamura & Wakahara,2012 : 60.
Caltoris cahira austeni ; Onodera,2022 : 124, pl.262, figs.♂,♂(Un),♀,♀(Un). (Xiengkhouang: Tha; Phou Samsoum)

[ VIETNAM ]
Parnara austeni ; Godfrey,1919 : 470. (S: Daban)
Parnara nirwana austeni ; Seitz,1927 : 1084. (Tonkin)
Parnara nirwana austeni ; Metaye,1957 : 80. (N)
Parnara cahira ; Metaye,1957 : 80.
Caltoris cahira austeni ; Devyatkin & Monastyrskii,1999 : 179. (Tam Dao; Ba Vi; Ba Be; Cuc Phuong)
Caltoris cahira austeni ; Devyatkin & Monastyrskii,2003 : 131. (S: Cat Tien)
Caltoris cahira austeni ; Luong et al.,2004 : 15, 91, fig.♂. (Cuc Phuong)
Caltoris cahira austeni ; Miyazaki et al.,2010 : 32, fig.H-151,♂. (Lam Dong: Dambri)
Caltoris cahira austeni ; Monastyrskii & Devyatkin,2015 : 85. (N / C: to Lam Dong)

[ THAILAND ]
Mae Hong Son : 1♂.

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Chiang Mai : 3♂ 3♀.

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Phetchabun : 1♂.

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Nakhon Nayok : 1♂ 1♀ (photo by S.Sophonviwatkul).

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Chanthaburi : 1♂.

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Ranong : 4♂.

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Nakhon Si Thammarat : 1♂.

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Yala : 2♂.

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The butterfly is locally not rare in montane forests at low to moderate elevations (Alt. 30 - 1200m). Both sexes visit flowers.
Huang (2011) treated ssp.carina as a synonym of ssp.austeni. However, here the two are provisionally treated as separate subspecies as before. Further taxonomic study is needed.
This species can only be distinguished by examination of the male genitalia.

Moore, F.,1884 : Descriptions of new Asiatic Diurnal Lepidoptera.
Proc. zool. Soc. Lond. 1883(4):521-535, pls.48-49.

Mabille, P.,1891 : Description d'Hesperides nouvelles. Premitere Partie, Deuxieme Partie, Troisieme Partie.
C. R. Soc. ent. Belg. 35:lix-lxxxviii, cvi-cxxi, clxviii-clxxxvii.

Swinhoe, C.,1893 : A List of the Lepidoptera of the Khasia Hills. Part.1.
Trans. ent. Soc. Lond. 41(3):267-330.

Evans, W.H.,1926 : The Identification of Indian Butterflies (9-11).
J. Bombay nat. Hist. Soc. 31(1):49-83, pl.30 ; (2):427-446, pl.31 ; (3):615-637, pl.32.

Evans, W.H.,1932 : The identification of Indian butterflies. second edition revised.
Bombay nat. Hist. Soc., Madras : 10+454pp, 32 pls, 9f.

Sonan, J.,1936 : Notes on some butterflies from Formosa.
Zephyrus 6:205–216, 3 pls. (in Japanese)

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.

Chiba, H., Hsu, Y.F., Tsukiyama, H., Lo, P.Y.F., Chen, C.R. & Wang, S.M.,2009 :
Jinhaku Sonan's skipper type collection deposited at Taiwan Agricultural Research Institute (Lepidoptera: Hesperiidae)
Zootaxa 2202:48-58.

Huang, H.,2011 : Notes on the genera Caltoris Swinhoe, 1893 and Baoris Moore, [1881] from China (Lepidoptera, Hesperiidae).
Atalanta 42(1-4):201-220.

♂, Chiang Mai, Thailand.

2018.08.31 - 2025.01.31.