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

ON : Eurema ada iona Talbot, 1939 OD : Fauna Brit. India (Butts) (ed.2) 1: 537. TL : Genting Simpah, Pahang-Selangor, Malay Peninsula. (NHML) Distribution : P.Thailand (south of Ranong), 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) (partim)
Eurema ada iona ; Sophonviwatkul et al.,2024– : Butterflies of Thailand, fig. (Yala) (accessed: 2024.04.13)

[ THAILAND ]
Ranong : 5♂ 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Yala : 2♂ 1♀.

Jan

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Dec

The butterfly is locally common in forests at low to moderate elevations (Alt. 30 - 550m). Both sexes visit flowers and often rest on the underside of leaves. Males are frequently observed mud-puddling along stream banks and at puddles.

Talbot, G.,1939 : Fauna of British India, including Ceylon & Burma. Butterflies. 1. (Papilionidae & Pieridae) (ed.2).
London. xxxix + 600 pp, 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 - 2025.09.30.