Quote Originally Posted by Commander View Post
Here... a couple of pictures paint a thousand words. But you should still take heed of Unclue Seow's words on how to differentiate the two. This is only limited to the separation of the female Q. monteithi, since the males are brown and unmarked.
Thanks Mr Khew!

Quote Originally Posted by Psyche View Post
Good question, Brian.
They actually look very similar.
Both have the palpi 2nd segments(which covers the proboscis) large and bulging in front of the eyes.

Notocrypta (Demons) have more prominent palpi 3rd segments the 2 knobs which sit on top of the 2nd segments.
The body is brown; antennal club has a faint white patch ( not always seen in photos).
The shape of the white band (if exposed) is different.
The spot in space 4 may be present.

Quedara have the palpi 3rd segment almost invisible; a dark grey (blackish) body. No extra hyaline spot; different white band; antennal club black.
The male looks like a small Paintbrush Swift (Baoris), but is unspotted, the palpi 2nd segments are bulging, & the hindwing cilia are dark grey.

TL Seow
Quote Originally Posted by Psyche View Post
The Arhopala looks to be correctly the Vinous Oakblue(A. athada). It should be fairly large (larger than A. major)

Hindwing submarginal & postdiscal bands well separated.
Hindwing spot 6 broad enough to bridge or touches the cellend bar & spot 5 below.
Forewing spot 9 not dislocated or shifted out of position.

The shape of spot 6 here (hindwing) is somewhat atypical for A. athada. The usual shape is slightly convex on the inner margin & slight concave or with an indentation on the outer margin.

TL Seow
Thanks Uncle Seow for the IDs and explanations!