https://www.butterflycircle.com/atta...4&d=1751435660
Nacaduba hermus male.
The four line blues can be rather difficult to ID.
N. pactolus can be IDed by the combinations.
HW tornal black spot always with metallic scales.
white striae often broad or diffuse,dark striae absent.
HW submarginal spots 'flat' with level inner margins, topped by a large squarish spot 6.
https://www.butterflycircle.com/chec...-%20horace.jpg
https://www.butterflycircle.com/chec...0-%20Sunny.jpg
Species with the dark strae obsolete or nearly so.
N. sanaya, subperusia, & pendleburyi.
Species with strongly developed dark striae, tornal spot always with metallic scales.
N. pavana, russelli.
Species with heavy white striae and metallic scales on the tornal black spot.
B. pactolus, angusta.
Nacaduba hermus is uniquely halfway between those with strong and those with no dark striae.
Dark straie are patchy , partial or disintegrating.
The metallic scales on the tornal black spot may be weak or strong.
FW postdiscal band usually not dislocated at vein 5.
HW postdiscal band close to the submarginal spots which may be rounded.
https://yutaka.it-n.jp/lyc4/81200020.html
https://www.gbif.org/occurrence/2847201952
https://www.gbif.org/occurrence/4500772618
https://www.gbif.org/occurrence/2847201921
https://www.gbif.org/occurrence/4436196086
TL Seow: Cheers.
