♂, Yala, Thailand. (photo by S.Atdhabhan)		♀, Yala, Thailand.
♂, Ranong, Thailand.		♀, Ranong, Thailand.

ON : Sepa damocles Evans, [1939] OD : J. Fed. Malay St. Mus. 18(3):402, pl.7, figs.13,♂, 14,♀. TL : Kota Tinggi, Johore, Malaya. (♂, NHML) Distribution : P.Thailand (Ranong and Southward), W.Malaysia, Borneo, Bangka.

[ THAILAND ]
Isma guttulifera ; Pinratana,1985 : 76, pl.25, fig.161,♂. (Trang)
Isma umbrosa umbrosa ; Ek-Amnuay,[2007] : 798, pl.366, figs.H188,♂(left),♂(left,Un). (in part)
'Isma damocles ; Ek-Amnuay,[2007] : 798, pl.366, figs.H190,♂(W.Malaysia),♀(W.Malaysia).'
Isma damocles ; Kimura et al.,2011 : 77, figs.♂,♂(Un). (Than To WF.) (in part)
Isma umbrosa umbrosa ; Ek-Amnuay,2012 : 854, pl.394, figs.H185,♂(left),♂(left,Un). (in part)
'Isma damocles ; Ek-Amnuay,2012 : 854, pl.395, figs.H187,♂(left,W.Malaysia),♀(left,W.Malaysia). (in part)'
'Isma damocles ; Küppers & Janikorn,2017 : 107, fig.Abb.H-189. (Phang Nga)'
Isma damocles ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2021- : Butterflies of Thailand, fig. (Yala) (accessed: 2023.08.04)

[ THAILAND ]
Ranong : 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Satun : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Yala : 1♂ 1♀.

Jan

Feb

Mar

Apr

May

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Jul

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Sep

Oct

Nov

Dec

The butterfly is locally not rare in montane primary forests at low elevations (Alt. 30 - 450m).
Küppers & Janikorn (2017) recorded it by photo in nature, however is uncertain. Accurate identification by photo in nature is not possible, specimens need to be examined.

Evans, W.H.,[1939] : Some interesting Malayan Hesperiidae, and and Analysis of the Genus Sepa.
J. fed. Malay St. Mus. 18(3):395-405, pl.7.

Maruyama, K.,1991 : Butterflies of Borneo vol.2, No.2. Hesperiidae, Addndum of vol.1.
XII+89 pp(Japanese text), 48 pls, XII+83 pp (English text) + 1.
Tobishima corporation. Tokyo, Japan.

♂, Yala, Thailand. (photo by S.Atdhabhan)

1999.09.11 - 2023.08.31.