Skipper ID request

[LJK1410]

Thank you Dr Seow!

[LJK1410]

Hi Dr Seow,

Require confirmation on some IDs. Thank you!

1. Potanthus serina?
photo1665919627.jpeg

2. Caltoris sp. Shot on Pulau Ubin by Lumin Ong
WhatsApp Image 2022-10-15 at 2.40.53 PM.jpeg

3. Amathusia phidippus? Shot on Pulau Ubin by Lumin Ong
WhatsApp Image 2022-10-16 at 7.31.19 PM.jpeg

[Psyche]

Post 41.

1. Potanthus serina male.
Note FW spot 5 is smaller than sot 4.
HW shaded dark brown, not black; HW band with a triangular spot 6 on the upper inner corner.

2. Caltoris cormasa male.
Note prominent pale area on antenna, the dark reddish colour deeper on HW; FW spots yellowish.


3. Male Amathusia phidippus phidippus
Note HW 4th dark band from base , both margins not notched by the passing veins.
Amathusia.png

Examples.
Tanglin
https://inaturalist-open-data.s3.ama...617/large.jpeg
Nanyang.
https://inaturalist-open-data.s3.ama...1922/large.jpg
CWCA
https://static.inaturalist.org/photo...1250/large.jpg
https://inaturalist-open-data.s3.ama...177/large.jpeg
Southern Ridges.
https://static.inaturalist.org/photo...237/large.jpeg
Cluny.
https://inaturalist-open-data.s3.ama...350/large.jpeg
Pasir Ris.
https://static.inaturalist.org/photo...953/large.jpeg


Amathusia friderici holmunhunti
This is not uncommon as the larva now feed on oil palm. A dark form in which the male upperside is almost black (form utana) also exist.
This differs from A. phidippus in that the 4th dark band from the HW base is strongly notched by the veins on both margins.
As expected most sightings are on Pulau Ubin.
P. Ubin.
https://inaturalist-open-data.s3.ama...7804/large.jpg
https://static.inaturalist.org/photo...1194/large.jpg
https://static.inaturalist.org/photo...724/large.jpeg
https://static.inaturalist.org/photo...114/large.jpeg
https://inaturalist-open-data.s3.ama...4447/large.jpg
Botanic Garden.
https://inaturalist-open-data.s3.ama...058/large.jpeg
Pasir Ris.
https://inaturalist-open-data.s3.ama...653/large.jpeg


TL Seow: Cheers.

[LJK1410]

Thank you Dr Seow!

After reading the key ID features you mentioned, I re-looked at my previous Amathusia shots. I labelled this as A. phidippus previously but now I noticed the 4th band seems to be notched by the veins. Perhaps you could take a look.

Shot at Upper Seletar Reservoir
photo1665927345.jpeg
photo1665927345 (1).jpeg

[Psyche]

Post 43.

These are both A. phidippus.
If you look at the inner margin of the 4th band there are practically no indentation made by the veins.


TL Seow: Cheers.

[LJK1410]

Ah okay I get it now, thank you very much Dr Seow!

[LJK1410]

Hi Dr Seow,

Some IDs that need confirmation. Thank you!

1. Potanthus trachala?
trachala.jpeg

2. Caltoris cormasa
cormasa.jpeg

3. Ypthima horsfieldii? All are the same individual, not sure if the uppersides would add any clarity but included anyways.
ypthima 1.jpeg
ypthima 2.jpeg
ypthima 3.jpeg