Sphingids from Thailand Sept-Oct 2012

[guldsmed]

Yes, I was unable to ID the Parum from the book, I only managed by accidentally stumbling over a pic online (John Moore, thaibugs). After that I could confirm by the book, as you say greens do fade, but I really think it is worse in that book than it should be...

It must be VERY old specimens (or specimens exposed to light) or a printing problem or a combination. The Pergesa is hopeless too.

[Psyche]

I agree completely with Seow on No. 1. The forewing apex shape is distinctive for this genus and C. montana, in Thailand, is only known from the extreme north.

With regards to No 2, I am more inclined towards Acosmeryx omissa, though the members of this genus are very similar, and the specimen appears quite worn.

The named ones appear correct.

Agreed with you no. 2 is unlikely to be A. anceus as the forewing dark band is gently curved. I think it is also missing a dark band/line at the upper abdomen just below the thorax.
It could be the female of A. omissa as you suggested.
The post 5 male looks correctly A. anceus.

TL Seow

[guldsmed]

Very good, so got two species out of it