These are two different individual as spot 8 (topmost of the 3 subapical spots) is larger in pix 2.
1. Potanthus omaha male ;abdominal end yellow; HW upperside with the veins dark. Correction; this is for Pix 2.
2. Potanthus ganda male : Underside veins barely darkened ;heavier HW dark shading centrally & edging the band. Correction; This is for Pix 1.
In the past These two species cause a lot of confusion because of great individual variation in the amount of vein darkening.
The abdominal end in both species is yellow in the males & lightly dark-dusted above in the females.
P.omaha :FW12mm.; Upperside with HW veins across band variably dark-dusted; Underside veins also darkkened ; lightly shaded & band not edged with dark shaded spots in the male (a little so in the female ); ochreous.
Upperside male.
https://www.nss.org.sg/gallery_image...107_resize.jpg
Underside. males ; note barely any dark edgings to the band ;veins are distinctly dark.
http://www.butterflycircle.com/check...drick%20Ho.jpg
http://www.butterflycircle.com/check...se_site_01.jpg
https://www.thaibutterflies.com/wp-c...a-1080x675.jpg
females.
http://4.bp.blogspot.com/-4O8gFkmT2t...28TBC%2529.jpg
http://4.bp.blogspot.com/-MF0Ou8Bsf6...0/DSC_0189.JPG
P. ganda FW 13mm.;.Upperside HW veins not dark or barely :Underside veins not dark or lightly so; Heavy dark shading & HW band edged with diffuse dark spots; orangey.
Upperside male.
http://www.natureloveyou.sg/Minibeas...796%20(11).JPG
Males.
http://4.bp.blogspot.com/-L3ew9ztkIk...thus-ganda.jpg
females.
https://3.bp.blogspot.com/-e_HuBihng..._underside.jpg
http://i66.tinypic.com/6irw9z.jpg
P. serina large FW 16-17mm. FW spot 5 smaller than spot 4; veins generally not dark . Underside lightly shaded dark ; small spot 6 at inner corner of band; abdominal end black banded in male, with dark patch in female.
female.
http://3.bp.blogspot.com/-I9rwXFooJp...tanthus-up.jpg
http://www.butterflycircle.com/check...ale_Horace.jpg
Male.
http://www.butterflycircle.com/check...serina-KSK.jpg
TL Seow: Cheers.
Last edited by Psyche; 24-Jan-2018 at 05:44 AM. Reason: Pix mixed-up
Thank you, Dr Seow! I thought I had it ID’d!
Post 3.
Potanthus ganda male.
The veins across the HW band are not darkened.
TL Seow: Cheers.
PS: ID Corretion: This is likely to be Potanthus mingo. There appeared to be a black band/patch at the abdominal end, & the lower margin of the HW band is strongly notched.
Note the lower margin of the HW band is only slightly notched, & the abdominal end is yellow in P. ganda.
http://www.natureloveyou.sg/Minibeas...796%20(11).JPG
P. mingo : Note HW band outer margin strongly excavated.
http://3.bp.blogspot.com/-f3wB2A2ujB...0/_MG_1531.jpg
Last edited by Psyche; 23-Jan-2018 at 11:14 PM. Reason: PS
Post 1.
Pix 1 with the underside is that of Potanthus ganda.
Pix 2 showing the partial upperside is that of Potanthus omaha.
TL Seow: Cheers.
Thanks, Dr Seow. These Potanthus are a challenge!