♂, 1987.03.15. Satun (Koh Tarutao), Thailand.		♀, 1987.03.15. Satun (Koh Tarutao), Thailand.
♂, Satun (Koh Tarutao), Thailand.		♀, Satun (Koh Tarutao), Thailand.
♂, Satun (Koh Tarutao), Thailand.		♀, Satun (Koh Tarutao), Thailand.

♂, Surat Thani (Koh Phangan), Thailand.		♀, Surat Thani (Koh Phangan), Thailand.
♂, Surat Thani (Koh Samui), Thailand.		♀, Surat Thani (Koh Samui), Thailand.

ON : Tanaecia julii mansori Yokochi, 1993 OD : Futao 14:3, pl.1, figs.1(HT,♂),2(HT,♂Un),3(PT,♀),4(PT,♀Un). TL : Langkawi, W.Malaysia. (♂, in coll. T.Yokochi) Distribution : P.Thailand (Koh Tarutao), W.Malaysia (Langkawi). [Surat Thani: Koh Samui; Koh Phangan.] ● ssp.julii ● ssp.duc ● ssp.odilina ● ssp.xiphiones ● ssp.mansori

Holotype ♂, 23.Jan.1992. Mt.Raya, Langkawi Island, W.Malaysia. (in coll. T.Yokochi)
Paratypes : 15♂ 19♀. same locality as holotype.

[ THAILAND ]
Taenacia julii xiphiones ; Les Day,2011-2022 : Samui Butterflies, figs.♂,♂(Un),♀,♀(Un). (Koh Samui; Koh Phangan) (accessed: 2021.04.10)
Tanaecia julii mansori ; Ek-Amnuay,2012 : 432, pl.189, figs.N298b,♂(right,Un). ("Satun" [Koh Tarutao]) (in part)
Tanaecia julii mansori ; Kimura et al.,2016 : 98. (by literature)

[ THAILAND ]
Satun (Koh Tarutao) : 12♂ 3♀.
1987.03.15. 4♂ 1♀.

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Surat Thani (Koh Samui dist ; Koh Phangan dist.) : 5♂ 2♀.

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The specimens of Koh Tarutao on 15.Mar.1987, shown above are the first discovery from Thailand. The butterfly is common in montane forest at low elevations (Alt. 10 - 150m) and males are territorial on shrubs or undergrowth.
The examples from Koh Samui and Koh Phangan are very similar to this subspecies. I know this is unnatural in terms of zoogeography, but I consider them to be the same subspecies and provisionally treat them all as ssp.mansori. It could be a similarity due to the oceanic climate, but I rather suspect it could be related to the origin of these islands, as the same tendency is seen in several other species. Further taxonomic study is needed including DNA analysis.

Yokochi, T.,1993 : Two new subspecies of Genus Tanaecia Butler and Euthalia Hübner from Langkawi Island, Malaysia. Lepidoptera: Nymphalidae.
Futao 14:2-4, pl.1.

♂, Surat Thani (Koh Phangan dist.), Thailand. (photo by A.Giudici)

2007.01.10 - 2023.08.31.