♂, Ranong, Thailand.		♀, Ranong, Thailand.
♂, Satun, Thailand.		♀, Ranong, Thailand.

ON : Ypthima cerealis singorensis Aoki & Uémura, 1984 OD : Tokurana (6/7):79, figs.2j,6,8B,26(HT,♂), col.pl.5, figs.3(HT,♂) ,7(HT,♂Un). TL : Songkhla, P.Thailand. (♂, RIEB) Distribution : P.Thailand. ● ssp.indosinica ● ssp.singorensis

Holotype ♂, 10.Feb.1975. Songkhla, P.Thailand. (RIEB. examined.)
Paratypes ; 3♂ 2♀, Songkhla, P.Thailand ; 1♀, Ko Samui, P.Thailand.

[ THAILAND ]
Ypthima baldus newboldi ; Ek-Amnuay,[2007] : pl.119, fig.S90b♂[♀](top-right,Un). (in part)
Ypthima singorensis singorensis ; Uémura,2010 : 7.
Ypthima baldus newboldi ; Les Day,2011-2022 : Samui Butterflies, figs.[♀],[♀](Un). (Koh Samui; 'Koh Phangan') (accessed: 2022.10.15)
Ypthima singorensis singorensis ; Les Day,2011-2022 : Samui Butterflies, figs.[♀],[♀](Un). (Koh Samui; Koh Phangan) (accessed: 2022.10.15)
Ypthima singorensis singorensis ; Kimura et al.,2016 : 198, figs.♂,♂(Un),♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Kam Puan; Khlong Naka; Kao Luang; Ka Chong; Haadjai; Sonkhla; Than To WF.)
Ypthima baldus newboldi ; Küppers & Janikorn,2017 : fig.Abb.S-168. (Phang Nga) (in part)

[ THAILAND ]
Ranong : 10♂ 5♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Phang Nga : 1♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Satun (Koh Tarutao) : 2♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Yala : 2♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is common in secondary and montane forests at low elevations (Alt. 10 - 350m).

Aoki T. & Uémura, Y.,1984 : Studies on the genus Ypthima (Lepidoptera: Satyridae) in Thailand.
Tokurana (6/7):71-103, 43 figs, 1 col.pl., 8 figs.

1998.12.07 - 2022.09.30.