Caltoris cormasa.

The UnH is strongly reddish brown.
In some examples such as this, the smaller spots are weak or obsolete, only spot 2 & 3 present.
The antennal tip (apiculus) is short & straight.
https://www.butterflycircle.com/chec...20-%20Khew.jpg
https://static.inaturalist.org/photo...jpg?1591076406


Pemara pugnans.
The underside is ochreous brown finely speckled.
The antennal tip (apiculus) is long & curved down.
https://www.butterflycircle.com/chec...20-%20Khew.jpg
https://www.butterflycircle.com/chec...enry%20Koh.jpg

Quedara monteithi male.
UnH dark brown, never reddish; body dark greyish brown.
The neck is narrower & the head have noticeable greenish hairs.
https://thaibutterflies.com/wp-conte...-monteithi.jpg
https://thaibutterflies.com/wp-conte...-monteithi.jpg


TL Seow: Cheers.