Extracted from post by James, some finding:
One of the ID key gone missing in the 3rd shot. There's is no orange spot in space 7 hindwing, that lead me to think whether it's a Potanthus rectifasciatus or Potanthus pamela?
Thankfully there are only three Telicota spps in Singapore.
1 T augias augias male. In T. augias male the underside forewing area is deeply shaded orange so that the spots are difficult to discend from the ground colour.
2 T. colon stinga male. The male is readily IDed by the orangey vein streaks running from the main spots.
3 Potanthus hetaerus serina female. The black gap between the the three subcostal spots and the costal yellow area indicates it is a Potanthus. The underside have a neater appearance than other Potanthus. The marginal areas are shaded yellow and crossed by darkened veins. Hindwing band has a small extension into space 6 (probably not important)
Horace was right.
4 T. augias male . As stated, ground colour obscured the spots.
5 T. augias . Left-male, right-female. The underside orangey-yellow ground colour of the hindwing of the female IDed the pair.
Giving Les' photos a miss, since I am not too sure about the Thai spps.
Sky Blue 's photo
Cephrenes acalle niasicus male
The series of orange costal streaks extending and joining the 3 subcostal spots is not seen in Potanthus but typical of Telicota male. However, on the upperside the streaks are not so extensive and just meet the subcostal spots.
In addition, the orange cell bar have a central black streak not found in the in the 3 Telicota spp male.
Banded Yeoman 's photo
Potanthus omaha male.
Note small size, band cut by darkened veins; costal band not strongly darkened as in P. hetaerus male. Highly variable, thus spot in space 6 may be present.
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