M. visala phamis from P. Thailand have the inner margins of the HW ocelli irregular making it more confusing.
The long yellow brand UnF reaching the white band show the IDs are correct. http://yutaka.it-n.jp/sat/40720010.html
M. perseoides shown is very confusing with the brand small & yellow or small & black, suggesting a mixedup of 2 species. http://yutaka.it-n.jp/sat/40670001.html
Thanks Dr Seow. For typical examples, the ID key that you've crafted works very well. However, there appears to be either intermediates or possible hybrids that make it hard to establish an ID for one or the other, unless the individual is captured and the brands examined in a collection. There are some field examples that are pretty hard to separate just via photos. But for the rest which have the typical diagnostic characteristics as you have described, they are quite easy to identify. I guess it's just one of those things in nature where there isn't always a single answer to everything. I am still hoping that we have somehow missed Mycalesis horsfieldi or Mycalesis intermedia due to the fact that most photographers tend to avoid chasing and shooting these Bush Browns. Perhaps one day someone will find them here in Singapore.
M. intermedia distanti is now separated into two species. M. intermedia, Thailand, India SE Asia, but not in P. Malaysia. M. distanti P. Malaysia, S. Thailand.
This one is incorrectly IDed as M. visala. The UpH hair tuft indicate a male but the UnF shows no sign of the long yellow brand.
Thus it should be M. perseoides.
The inner margins of the HW ocelli also form a wider more irreglar identation.
This male also compares favourably with your pic 2 which reinforces that it is more likely to be M. perseoidesthough with mixed blood.