ID help needed

[Sailfish]

Dear Dr Seow,

Is this Caltoris cormasa?

Screenshot 2025-09-14 190221.jpg

Thanks,

[Psyche]

Post 101
https://www.butterflycircle.com/atta...5&d=1757911580

Baoris ,most likely Baoris oceia.

The uniform grey brown colur is typical.
The FW spottiing is much reduced, and both cellspots are missing.
The ID of Baoris is very difficult.

The two species in Singapore tend to have reduced spotting in the male more so in B. oceia.
It is assumed that the darker blackish one is B. oceia and the lighter brown one B. farri.
In the past I thought the one with a narrow crescentic upper cellspot to be male B. oceia, because all male B. farri in eg China,India appear to have rounded cellspots.
eg.
https://www.flickr.com/photos/itchydogimages/7863317448
https://commons.wikimedia.org/wiki/F...h_Swift_12.jpg

This is no longer true, and the presence of an upper cellspot is more suggestive of B. farri.
Thus, probale ID.

Baoris farri.
Lighter brown.
Male more spotted, especially an upper cellspot.
Males.
https://blogger.googleusercontent.co...hSwift-KSK.jpg
https://2.bp.blogspot.com/-jE5CT4nr9...i_adult_03.jpg
Female.
https://blogger.googleusercontent.co...er_Hern_01.jpg



Baoris oceia.
Darker blackish brown.
Male with upper cellspot usually absent.
Males.
https://www.besgroup.org/wp-content/...d-dropping.jpg
https://www.butterflycircle.com/chec...-Simon-Sng.jpg
Female.
https://blogger.googleusercontent.co...oris+oceia.jpg

Note: These assumptions may not be correct.


Caltoris cormasa is usually recognizable by a strong reddish tone to the ground colour, provided the camera colour balance is correct.
More often with three small subapical spots.
HW is deeper red brown and darker.
Antenna should have a visible pale area.
HW veins are not prominently raised.
Males.
https://blogger.googleusercontent.co...herHern_01.jpg
https://2.bp.blogspot.com/-c7t4k7FNW...%2Bcormasa.jpg
https://www.gbif.org/occurrence/2422986427
Females.
https://www.butterflycircle.com/chec...obby%20Mun.jpg
https://blogger.googleusercontent.co...0/DSC_0349.JPG



TL Seow: Cheers.