Post 119.

Yes. This would be Amathusia friderici.
Since it feeds on the common oil palm it is not rare in P. Ubin.

The other species of Amathusia are very similar & difficult to separate..

A. binghami looks very similar ,the median band is broad & more reddish. The upperside with more dusky orange markings.
https://www.pbase.com/lcgoh/image/155684525

A. masina is deep reddish brown ,the paler postdiscal band is also solid, without a colour break in the middle of the band.
https://inaturalist-open-data.s3.ama...9390/large.jpg


Amathusia perakana have the HW 4th band often completely broken , with separated spots.
In addition the male have sharper FWs.
Males.
https://farm1.staticflickr.com/618/2...ac383a60_b.jpg
https://thaibutterflies.com/wp-conte...a-perakana.jpg

The recent observation from Kent Ridge is definitely not A. phidippus.
https://static.inaturalist.org/photo...502/large.jpeg
It looks like a female A. perakana.
The FW is not sharp as in the male.
However, there are examples of A friderici from Ubin having the HW 4th band very narrow & broken.
So it is uncertain whether this is A.perakana or friderici.


TL Seow: Cheers.