♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Yala, Thailand.		♀, Yala, Thailand.

ON : Terias ada iona Talbot, 1939 OD : Fauna Brit. India (Butts) (ed.2) 1:537. TL : Genting Simpah, Pahang-Selangor, "Malay Peninsula" [W.Malaysia]. (NHML) Distribution : P.Thailand (Ranong and Southward), W.Malaysia, {Singapore}. ● ssp.indosinica ● ssp.iona

Holotype ♂, Type HT (red), 1.Jun.1930. Genting Simpah, Pahang, Selangor, Malay Peninsula. 2080 ft. (NHML) ; Yata,1991 : pl.4, figs.5,('LT'[HT],♂), 6('LT'[HT],♂Un).

[ THAILAND ]
Eurema ada iona ; Ek-Amnuay,[2007] : 180, pl.63, figs.Pi60a♂,♂(Un). ('Kanchanaburi' [loc.err.])
Eurema ada iona ; Jeratthitikul et al.,2009 : 6-8, figs.3F♂,3G♀. (Trang: Khao Shong; Pattani: Sai Khew)
Eurema ada iona ; Kimura et al.,2011 : 148, figs.♂,♂(Un),♀,♀(Un). (Ka Chong; Than To WF.)
Eurema ada iona ; Ek-Amnuay,2012 : 180, pl.62, fig.Pi59a♂,♂(Un). ('Kanchanaburi' [loc.err.])
Eurema ada iona ; Küppers & Janikorn,2017 : 201-202. (Phang Nga)
Eurema andersoni [sic] andersoni [sic] ; Küppers & Janikorn,2017 : fig.Abb.Pi-100. (Phang Nga) (in part)
Eurema ada iona ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2024- : Butterflies of Thailand, fig. (Yala) (accessed: 2024.04.13)

[ THAILAND ]
Ranong : 5♂ 2♀.

Jan

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May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Yala : 2♂ 1♀.

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Dec

The butterfly is locally common in montane forests at low to moderate elevations (Alt. 30 - 550m). Both sexes visit flowers and often rest on the underside of leaves. Males frequently come to the banks of streams and puddles to suck water.

Talbot, G.,1939 : Fauna of British India, including Ceylon & Burma. Butterflies. 1. (Papilionidae & Pieridae) (ed.2).
London : xxxix + 600pp, 1 map, 3 pls, 184 figs.

Yata, O.,1991 : A Revision of the Old World Species of the Genus Eurema Hübner (Lepidoptera, Pieridae).
Part 2. Description of the smilax, the halape, the ada and the sari (part) groups
Bull. Kitakyushu Mus. Nat. Hist. 10:1-51, pl.1-21.

1996.10.31 - 2024.04.30.