Koruthaialos butleri  (Nicéville, 1884)

Koruthaialos butleri ♂ Up. Koruthaialos butleri ♂ Un. Koruthaialos butleri ♀ Up. Koruthaialos butleri ♀ Un.
♂, Chiang Mai, Thailand. ♀, Chiang Mai, Thailand.
Koruthaialos butleri ♂ Up. Koruthaialos butleri ♂ Un. Koruthaialos butleri ♂ Up. Koruthaialos butleri ♂ Un.
♂, Phetchaburi, Thailand. ♂, Tak, Thailand.
Koruthaialos butleri ♂ genitalia Koruthaialos butleri ♂ genitalia
♂ genitalia, Nan, Thailand.

ON : Astictopterus butleri Nicéville, 1884
OD : J. asiat. Soc. Bengal, Part II. 52(2/4):98-99, pl.10, fig.3,♂.
TL : Sikkim. (♂)
Distribution : Sikkim to Myanmar, Thailand, Laos, Vietnam.
Koruthaialos butleri map

Synonym

Arunena nigerrima Swinhoe, 1919 : Ann. Mag. nat. Hist. (9)3:317. TL. Khasia Hills, Assam. (♂, NHML)


Records taken from Literature

[ THAILAND ]
Koruthaialos butleri ; Pinratana,1985 : 61, not fig. (Tak; 'Ranong')
Koruthaialos butleri ; Kimura,1997 ; 41, pl.3, figs.51,♂,52,♂(Un). (Tak: Doi Musso)
Koruthaialos butleri ; Ek-Amnuay,[2007] : 784, pl.360, figs.H148,♂,♂(Un). (Tak)
Koruthaialos butleri ; Kimura et al.,2011 : 64, figs.♂,♂(Un) (Doi Suthep; Doi Musso)
Koruthaialos butleri ; Ek-Amnuay,2012 : 838, pl.387, figs.H144,♂,♂(Un). (Tak)

[ LAOS ]
Koruthaialos butleri ; Masui & Uehara,1996 : 5, pl.2, fig.23,♂,♂(Un). (Laksao)
Koruthaialos butleri ; Osada, Uémura & Uehara,1999 : 223, pl.139, fig.♂. (Oudomxay)
Koruthaialos butleri ; Nakamura & Wakahara,2012 : 59.
Koruthaialos butleri ; Onodera,2022 : 114, pl.251, figs.♂,♂(Un). (Oudomxai)

[ VIETNAM ]
Koruthaialos butleri ; Devyatkin & Monastyrskii,1999 : 168. (Cao Bang; Tam Dao; Na Hang; Vu Quang)
Koruthaialos butleri ; Monastyrskii et al.,2006 : 45. (Thua Thien Hue: Huong Thuy)
Koruthaialos butleri ; Monastyrskii & Devyatkin,2015 : 78. (N / C)


Specimens Examined

[ THAILAND ]
Mae Hong Son : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Chiang Rai : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Chiang Mai : 12♂ 2♀ (incl. photo).
JanFebMarAprMayJun JulAugSepOctNovDec

Loei : 1♂ (photo).
JanFebMarAprMayJun JulAugSepOctNovDec

Nan : 8♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Tak : 3♂.
JanFebMarAprMayJun JulAugSepOctNovDec

Phetchaburi : 1♂.
JanFebMarAprMayJun JulAugSepOctNovDec


Notes

The butterfly is locally not rare in montane forests at moderate elevations (Alt. 900 - 1300m) and is often found at forest edges. Both sexes visit flowers.
The figured specimens in Sheela et al.,2019 as the type specimens of Astictopterus butleri are not true type specimens. They are considered to be Koruthaialos rubecula, as Evans,1949 pointed out.
Pinratana,1985 recorded it from Ranong, however, it seems rather doubtful. Therefore, it should be put on hold until a record with a reliable specimen is found. Further distributional study is needed.


Literature

Nicéville, L. de,[1884] : Third list of Butterflies taken in Sikkim in October,1883, with Notes on Habits.
J. asiat. Soc. Bengal, Part II. 52(2/4):92-100. pl.10, fig.3.

Swinhoe, C.,1919 : New Lycaenids and Hesperids and Two new Species of the Noctuid Family Acontiidae.
Ann. Mag. nat. Hist. (9)3:314-319.


Koruthaialos butleri ♂ Koruthaialos butleri ♂
♂, Loei, Thailand. ♂, Chiang Mai, Thailand.
Koruthaialos butleri ♂ Koruthaialos butleri ♂
♂, Nan, Thailand. ♂, Chiang Mai, Thailand.

1999.09.04 - 2023.08.31.

A Check list of Butterflies in Indo-China, Chiefly from THAILAND, LAOS & VIETNAM. Copyright © 1996- Y.Inayoshi.