Request ID for Potanthus sp

[Lohhc1]

Dear Dr Seow,

Is this a Potanthus Omaha or Ganda? Taken today at USR

[Psyche]

It is a female Potanthus ganda.

It is probably P. ganda is far commoner than thought in Singapore.
It is very similar to P. omaha & some examples seem to be intermediate.

On the upperside the veins across the HW band are not darkened in ganda but in omaha (variable).
P. ganda is more orange but colour is very difficult to judge in photos.

Potanthus omaha.
Underside veins dark-dusted (variable).
Spots with poor dark edgings & HW dark shading light.
All males
http://www.butterflycircle.com/check...se_site_01.jpg
http://1.bp.blogspot.com/-dKUEBsLc9P...thus+omaha.jpg
http://www.butterflycircle.com/check...obby%20Mun.jpg
http://www.butterflycircle.com/check...drick%20Ho.jpg
Female on the left.
http://2.bp.blogspot.com/-SeSVvRKmjX...thus+omaha.jpg

Potanthus ganda.
Underside veins not or barely dark-dusted.
Spots with strong dark edgings & darker HW shading.
Males.
http://2.bp.blogspot.com/-8lpB_kJwF0...tanthus-sp.jpg
http://m9.i.pbase.com/g9/25/686825/2...9.b3hmUCRI.jpg
Females
http://m4.i.pbase.com/g9/25/686825/2...4.CttQ8Fzz.jpg
http://4.bp.blogspot.com/-6A1sOPm3bT...thus+omaha.jpg

TL Seow: Cheers.

[Lohhc1]

Thank you Dr. Sow