Post 27.

Your shots are actually of very good professional qualities.

1. Male Caltoris malaya.
NO FW upper cellspot visible.
Subapicalspot generally two.
Antenall pale area weak. ground uniform ochreous shaded brown ,female paler.
https://inaturalist-open-data.s3.ama...0812/large.jpg
https://inaturalist-open-data.s3.ama...650/large.jpeg

2. Caltoris cormasa.
Antennal pale area strong.
FW upper cellspot absent or small.
Subapical spots often three.
HW noticeably darker, deeper red, purplish brown contrasting with FW.
CORMA.png
No upper cellspot. Subapical spots two, spots 6 & 7.
https://inaturalist-open-data.s3.ama...408/large.jpeg
https://inaturalist-open-data.s3.ama...5318/large.jpg


C. bromus bromus.
FW with prominent cellspots (typical 2large)
Subapical spots often two.
Antennal pale area prominent.
Underside uniform dark brown with ochreous overlay.
Female paler, often with 1 -2 HW spot.
Males.
https://inaturalist-open-data.s3.ama...9155/large.jpg
https://i13.photobucket.com/albums/a...psd5aebfd1.png
https://inaturalist-open-data.s3.ama...7817/large.jpg
Female. note HW spot in space 2.
https://inaturalist-open-data.s3.ama.../original.jpeg

Caltoris cahira austeni.
Antennal pale area strong.
Subapical spots often two, two cellspots.
Deep brown, HW overlaid with dark chocolate.
Female.
https://inaturalist-open-data.s3.ama...3281/large.jpg



4. Potanthus ganda. abdominal end yellow in male, dark shading in female.
Deeper orange or tawny.
Veins across HW bnad not or barely darken.
Heavier dark shading.
Male.
https://inaturalist-open-data.s3.ama...648/large.jpeg
Females.
https://inaturalist-open-data.s3.ama...395/large.jpeg
https://inaturalist-open-data.s3.ama...1018/large.jpg


4. Potanthus omaha Female.
Abdominal end yellow in male, dark shaded in female.
HW veins across band dark dusted thru; ground duller yellower less dark shaded.
Pair, female on left.
https://inaturalist-open-data.s3.ama...250/large.jpeg
Female.
https://inaturalist-open-data.s3.ama...1026/large.jpg

TL Seow: Cheers.