♂, Ranong, Thailand.		♀, Surat Thani, Thailand.
♂, Ranong, Thailand.		♀, Ranong, Thailand.	♀, Ranong, Thailand.

ON : Delias acalis perakana Talbot,1928 OD : Bull. Hill Mus. 2(1):39. TL : Perak, Malaysia. Distribution : P.Thailand (Ranong and Southward), W.Malaysia. ● ssp.pyramus ● ssp.shinkaii ● ssp.perakana

[ THAILAND ]
Delias thysbe pyramus ; Pendlebury,1923 : 26. (Nakhon Sri Thammarat: Khao Luang)
Delias thysbe pyramus ; Godfrey,1930 : 223. (Nakhon Sri Thammarat)
Delias thysbe pyramus ; Godfrey,1932a : 265. (P)
Delias acalis perakana ; Pinratana,1983 : 8, pl.6. fig.9b♀. (Ranong)
Delias acalis perakana ; Yagishita et al.,1993 : 247, pl.119, figs.3,♂,4,♀. (S: Ranong)
Delias acalis perakana ; Ek-Amnuay,[2007] : 132, pl.38, figs.Pi9c♂,♂(Un),♀. (Muang Shone)
Delias acalis perakana ; Kimura et al.,2011 : 168, figs.♂,♂(Un),♀,♀(Un). (Muang Shone)
Delias acalis perakana ; Ek-Amnuay,2012 : 132, pl.38, figs.Pi9b♂,♂(Un),♀. (Muang Shone)
Delias acalis perakana ; Küppers & Janikorn,2017 : 189, fig.Abb.Pi-026. (Phang Nga)

[ THAILAND ]
Ranong : 2♂ 2♀.

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Surat Thani : 12♂ 13♀.

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The butterfly is locally not rare in montane forests at moderate elevations (Alt. 900 - 1300m). Both sexes visit flowers.
I have seen a female in Betong, Yala that I believe to be this species. However, this record will be pending until confirmed by specimens. Further distributional research is needed.

Talbot, G.,1928 : New forms of Delias (Lep. Pieridae)
Bull. Hill Mus. 2(1):38-44.

1996.10.31 - 2022.07.31.