Pedesta thandaunga

Pedesta thandaunga (Evans, 1926)


♂, 1993.04.12, Chiang Mai, Thailand.		♂, Tak, Thailand.

♂, 1993.04.12, Chiang Mai, Thailand.		♂ genitalia, Chiang Mai, Thailand.

ON : Halpe thandaunga Evans, 1926
OD : J. Bombay nat. Hist. Soc. 31(3): 619.
TL : "Karen Hills" [Karen Hills, Kayah State, Myanmar]. (NHML)

Distribution : Myanmar, W. & N.W.Thailand.

Type Material Information

Syntype ♂, "Thandaung, Burma" [Thandaung, Kayin State, Myanmar]. (NHML, photo examined.)

Records taken from Literature

[ THAILAND ]
Thoressa fusca fusca ; Ek-Amnuay,[2007] : 776, pl.356, figs.H117,♂,♂(Un). (Umphang; 'Mae Hong Son' [Omkoi, Chiang Mai])
Thoressa fusca fusca ; Kimura et al.,2011 : 55. (by literature)
Thoressa fusca fusca ; Ek-Amnuay,2012 : 826, pl.381, figs.H114,♂,♂(Un). (Umphang; 'Mae Hong Son' [Omkoi, Chiang Mai])
Thoressa fusca fusca ; Inayoshi,1999-2023 : Butterflies in Indo-China, figs.♂,♂(Un),♂,♂(Un). (Chiang Mai; Tak) (31.Jul.2017 last updated ; 31.Jul.2023 changed.)
Pedesta fusca fusca ; Inayoshi,2023-2026 : Butterflies in Indo-China, figs.♂,♂(Un),♂,♂(Un),♂(genitalia). (Chiang Mai; Tak) (31.Mar.2026 last updated ; 31.May.2026 changed.)

Specimens Examined

[ THAILAND ]
Chiang Mai : 23♂ (3♂ genitalia dissected).
4♂, 1993.04.12, Omkoi Dist., PS (YI)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Tak : 4♂ (2♂ genitalia dissected).
1♂, 1994.03.19, Umphang Dist., YI (YI).

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Notes
Hao Huang (2026: pers. comm.) pointed out that all previous records of Pedesta fusca fusca (Elwes, 1893) in Thailand were misidentifications. It appears to be Pedesta thandaunga (Evans, 1926) from Kayah State, Myanmar, based on a comparison with the type specimen. Furthermore, the genitalia of this population is almost identical to those of Pedesta jinoae Huang, 2019 from Yunnan. P. jinoae might be conspecific with P. thandaunga. Further taxonomic study is needed.

The first record from Thailand is the above specimen on 12 April 1993 at Omkoi district, Chiang Mai. The butterfly is locally not rare in montane forests at moderate elevations (Alt. 900 - 1300m). Males occasionally come to the banks of streams and puddles to suck water. The female is unknown.

Literature

Evans, W.H.,1926 : The Identification of Indian Butterflies (11).
J. Bombay nat. Hist. Soc. 31(3): 615-637, pl. 32.

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.

Huang, H.,2019 : New or little known butterflies from China - 3 (Lepidoptera: Pieridae, Nymphalidae, Riodinidae, Lycaenidae et Hesperiidae).
Neue ent. Nachr. 78: 203-255.

2026.05.31.