Thanks Khew. I forgot my own advice that spots are not the most reliable way of ID'ing (previous post on an Amathusid), and completely forgotten about the black dusting.
I have T. helena (sorry about helenUS in first posting) and T aeacus as about the same size (between 100 -140mm wingspan), with T. amphrysus as much larger.
BTW, T. aeacus malaiianus and T.a.thomsoni are synonyms.
With regards to Cethosia cyane, was there a gradual appearance through Malaysia, as like Acraea violae, or did it appear suddenly. If the latter, it suggests an accidental introduction. (Parks need to be more responsible about their security. I think I have made my thoughts about this clear in the past).
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