♂, Nakhon Nayok, Thailand. (photo by S.Sophonviwatkul)		♀, Nakhon Nayok, Thailand. (photo by S.Sophonviwatkul)
♂, Chiang Mai, Thailand.		♀, Nakhon Nayok, Thailand.

ON : Mahathala ameria burmana Talbot, 1942 OD : Proc. R. ent. Soc. Lond. (B)11(8):122. TL : "Haungthraw Valley, Ataran" [Haungtharaw, Kayin State, Myanmar]. Distribution : Myanmar, Thailand, Laos, Vietnam. ● ssp.burmana ● ssp.? ● ssp.ariadeva

Types ♂♀, Ataran, Haungthraw Valley,

[ THAILAND ]
Mahathala ameria burmana ; Talboe,1942 : 122. (W.Siam)
Mahathala ameria burmana ; Pinratana,1981 : 106, pl.18, fig.13,♂(Un). (Chiang Mai; Kanchanaburi)
Mahathala ameria ameria ; Ek-Amnuay,[2007] : 654, pl.298, figs.L295a♂[♀],♂[♀](Un),♀,♀(Un). (Chiang Dao; Kanchanaburi)
Mahathala ameria burmana ; Ek-Amnuay,[2007] : 654, pl.298, figs.L295b♀,♀(Un). (Wang Nam Khieo)
Mahathala ameria ameria ; Ek-Amnuay,2012 : 690, pl.315, figs.L319a♂[♀],♂[♀],♀,♀(Un). (Chiang Dao; Kanchanaburi)
Mahathala ameria burmana ; Ek-Amnuay,2012 : 690, pl.315, figs.L319b♀,♀(Un). (Wang Nam Khieo)
Mahathala ariadeva burmana ; Kimura et al.,2014 : 88, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Chiang Dao; Wan Nam Khiewo; Thung Yai)
Mahathala ariadeva burmana ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs. (Chiang Mai; Sa Kaeo; Saraburi; Nakhon Nayok; Nakhon Ratchasima; Phetchaburi) (accessed: 2024.06.08)

[ LAOS ]
Mahathala ameria ameria ; Motono & Negishi,1989 : 74, pl.105, figs.B5,♂,B6,♂(Un). (Vang Vieng)
Mahathala ameria ameria ; Osada, Uémura & Uehara,1999 : 217, pl.120, fig.♀. (Nong Het)
Mahathala ariadeva ariadeva ; Nakamura & Wakahara,2012 : 54.
Mahathala ariadeva burmana ; Miyamoto & Nakamura,2016 : 25, fig.14,A♂,B♂(Un),C♀,D♀(Un). (Vientiane: Xieng Khouang)

[ VIETNAM ]
Mahathala ameria burmana ; Inoué & Kawazoé,1965 : 382-384, pl.18, figs.139,♂,140,♂(Un). (Ben Nom, Dong Nai)
Mahathala ameria burmana ; Monastyrskii & Devyatkin,2015 : 63. (N / C / S)

[ THAILAND ]
Chiang Mai : 3♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Tak : 1♂ (photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Saraburi : 1♀ (photo by C.Sunthornwiphat).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nakhon Nayok : 2♂ 2♀ (incl. photo & photo by S.Sophonviwatkul).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is locally not rare in montane forests at low to moderate elevations (Alt. 300 - 900m). Both sexes visit flowers.
The population from Koh Samui cannot be determined to which subspecies it belongs due to a lack of specimens. Confirmation with specimens is needed.

Talbot, G.,1942 : The races and forms of Mahathala ameria (Hewitson) Lep. Rhop.
Proc. R. ent. Soc. Lond. (B)11(8):120-123.

♂, Tak, Thailand.	♀, Saraburi, Thailand. (photo by C.Sunthornwiphat)
♂ (Ex.Pupa), Nakhon Nayok, Thailand. (photo by S.Sophonviwatkul)

1999.07.18 - 2024.06.30.