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This individual was photographed at 640 metres in Yala, southern Thailand, 22 Jun 23.
I am pretty sure I can narrow it down to either Euthalia adonia beata or Euthalia lubentina chersonesia, but I have no experience with either of these two forms.
In the limited literature they look incredibly similar. Please could I have some expert opinion of these two and how to separate them.
Many thanks.
Attachment 28438
Attachment 28439
Attachment 28440
Male. Euthalia adonia beata.
The males of the two species are very similar.
FW postdiscal spots forms a 'Y' with the cellend spots, its outer arm curving to join the costal spot.
Attachment 28441
Euthalia adonia male.
FW cell without red bars/spots.
FW lower part of the 'Y' ie spots 1b, 2, & 3 ( if present) is parallel to the margin (or perpendicular to the lower margin.)
http://yutaka.it-n.jp/lim2/721150010.html
https://wingscales.com/Nymphalidae/E...a-adonia-beata
http://www.butterflycircle.com/check...er_Hern_01.jpg
Euthalia lubentina.
FW cell usually with red spots but often faint & sometimes absent.
FW lower part of 'Y" pattern ( if visible)slant towards the FW tornus.
http://yutaka.it-n.jp/lim2/721190001.html
http://yutaka.it-n.jp/lim2/721190010.html
https://thaibutterflies.com/Butterfl...lia-lubentina/
TL Seow: Cheers.
Many thanks for the confirmation and clarification.