Doubt about this Amathusia adult?

[horace2264]

Many thanks, Dr Seow.
More work needs to be done to confirm A.friderici.

[horace2264]

Two more males eclosed today. Both have their 4th dark band in HW notched at the veins.

PalmKing_male01_800x.jpg
PalmKing_male_02_800x.jpg

[horace2264]

Continued from the previous post.

For the 1st male, I was able to take pics of the abdominal hair tuffs.

PalmKing_male01_newly_eclosed_800x.jpg

Close-up of the hair tuffs from the side.
PalmKing_male01_newly_eclosed_closed_up_800x.jpg

The hair tuffs are definitely not unicolorous.

[Psyche]

This gets very confusing as the individual hairs are also bicolored.

I am quite sure there is an error in the key, a typo error.
The line in the key should read.

' Abdominal hair tufts bicoloured.; the upper hairs yellowish buff ;the lower hairs greyish brown.'

This will then make sense.
If you have a ventral view of the abdomen as below this will be easier to see.

ie, ideal view of hair tufts.
FRIDERICI.png

Male A. phidippus.
Zoom in the Underside image. The abdominal hair-tufts can be seen. they are mostly yellowish.
https://singapore.biodiversity.onlin...0251?imageId=2


TL Seow: Cheers.

PS. Possibly there may be a 3rd species.
Both observations are of the same individual.
The HW 4th band broken through at several points suggest A. perakana.
https://www.inaturalist.org/observations/143352856
https://www.inaturalist.org/observations/143338434

A. perakana. HW 4th band broken thru.
FW sharp (?male only) & FW lower margin (dorsum) bowed .
https://thaibutterflies.com/wp-conte...a-perakana.jpg
https://www.inaturalist.org/observations/6648154

[horace2264]

Thanks Dr Seow for the illustration and the suggestion of a 3rd species.

We can wait for the pics of the set specimens to verify the coloration of the hair tuffs once the specimens are ready for photo-taking.

[Commander]

I did a quick ventral shot of the hair tufts from the specimen Horace passed to me.

Hairbrush01.jpg

[Psyche]

Thanks Khew.
What the reference text state can be somewhat different in reality.
The colour are not well separated but grades from yellow to greyish downwards.
Viewed from the side it was somewhat confusing as the hairs themselves were mostly bicoloured.

Also the error in the key probably perplexed many trying to ID it.


TL Seow: Cheers.

[Psyche]

Some interesting observations.

In the typical form the female A. friderici have a more prominent orange band than the female of A. phidippus.

This observation shows a female (note narrow notched HW 4th band)
The poor focus may have enlarge the orange band a bit
https://www.inaturalist.org/observations/137129383
Compare this.
http://yutaka.it-n.jp/ama/50330010.html

Females A. phidippus.
https://www.inaturalist.org/observations/137606032
Pity this did not have an underside view.
https://www.inaturalist.org/observations/103097156


TL Seow: Cheers.

[SL Liew]

Dear Dr. Seow,
I am try to learn more about id of A.friderici - your illustration of abdominal upper hair tufts vs lower hair tufts is very enlightening.
Is there any online photo that shows the color difference of upper hair tufts vs lower hair tufts of A.friderici?

Thanks. Cheers, SL Liew

This gets very confusing as the individual hairs are also bicolored.

I am quite sure there is an error in the key, a typo error.
The line in the key should read.

' Abdominal hair tufts bicoloured.; the upper hairs yellowish buff ;the lower hairs greyish brown.'

This will then make sense.
If you have a ventral view of the abdomen as below this will be easier to see.

ie, ideal view of hair tufts.
FRIDERICI.png

Male A. phidippus.
Zoom in the Underside image. The abdominal hair-tufts can be seen. they are mostly yellowish.
https://singapore.biodiversity.onlin...0251?imageId=2


TL Seow: Cheers.

PS. Possibly there may be a 3rd species.
Both observations are of the same individual.
The HW 4th band broken through at several points suggest A. perakana.
https://www.inaturalist.org/observations/143352856
https://www.inaturalist.org/observations/143338434

A. perakana. HW 4th band broken thru.
FW sharp (?male only) & FW lower margin (dorsum) bowed .
https://thaibutterflies.com/wp-conte...a-perakana.jpg
https://www.inaturalist.org/observations/6648154

[Psyche]

Nope.
TL Seow: Cheers.