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Dr. Seow,
I need your help once more. Are these Prosotas aluta? Or some sort of Nacaduba. I shot P. aluta before at Upper Seletar many months back, but doesn't quite look like this.
#1
http://i860.photobucket.com/albums/a...atPM061918.png
#2 different individual
http://i860.photobucket.com/albums/a...atPM053208.png
both the same butterfly?
Yes, they are both Prosotas aluta male.
As stated in the text of C&P4 the forewing postdiscal band is dislocated at vein 4 & the lowestmost spot in space 3 is shifted inwards.
This appears to be a very reliable feature, as a check thru numerous 6-line Blues do not show this.
Additional helpful features are.
1 The forewing uppermost submarginal spot (in space 6) is unusually large.
2. The hindwing submarginal spot in space 3 (just above the eyespot) is a sharp arrowhead.
No. 2 is remarkably like a Nacaduba, but these features together help to nail the ID.
TL Seow:cheers:
Thanks Dr. Seow!
After checking through my pictures, it appears I have many pctures of this species previously mislabeled.
I need to clear my Nacaduba files one day.