This is a real tricky one.
It actually looks like it might be a cross between juno & omaha.
The veins are not quite as dark as in typical omaha, but the forewing is out of focus. Upperside hindwing veins are not distinct.
There is a fair bit of black shading on the forewing & hindwing and the distribution is that of juno though not so clear cut as in Horace's 2 examples.
After looking at Federick's thread which shows a more typical omaha this should be juno.
TL Seow
PS. In looking at images of omaha, there are examples in which there is a fair degree of black dusting & comes close to this Potanthus. However, the subapical spots have the veins more clearly delineated.
There is always a possibility this one have some mixed blood in it.
Last edited by Psyche; 09-Jan-2012 at 08:35 AM.
Reason: PS