ID Requests - Peninsular Malaysia - by SL Liew - January 10, 2026

[SL Liew]

Hi Dr. Seow,
Happy New Year 2026. Requesting your help for id of my observations. Thanks.

#1 Tanaecia? Bukit Ayer, Perlis - Jan 8, 2026
https://www.inaturalist.org/observations/334127447

#2 Papilio? Bukit Ayer, Perlis - Jan 8, 2026
https://www.inaturalist.org/observations/334127468

#3 Grass Skipper? Bukit Ayer, Perlis - Jan 8, 2026
https://www.inaturalist.org/observations/334127469

#4 Grass Skipper? Kuala Woh, Perak - Jan 5, 2026
https://www.inaturalist.org/observations/333724661

#5 Grass Skipper? Kuala Woh, Perak - Jan 5, 2026
https://www.inaturalist.org/observations/333724645

#6 Jamides? Kuala Woh, Perak - Jan 5, 2026
https://www.inaturalist.org/observations/333724630

#7 Tanaecia? Kuala Woh, Perak - Jan 5, 2026
https://www.inaturalist.org/observations/333581103

#8 Eurema? Kuala Woh, Perak - Jan 5, 2026
https://www.inaturalist.org/observations/333581097

#9 Eurema? Kuala Woh, Perak - Jan 5, 2026
https://www.inaturalist.org/observations/333288404

#10 Lycaenidae? Air Itam Dam, Penang Island - Jan 2, 2026
https://www.inaturalist.org/observations/333128402

#11 Lycaenidae? Air Itam Dam, Penang Island - Jan 2, 2026
https://www.inaturalist.org/observations/333128399

#12 Grass Skipper? Sungai Sedim, Kedah - Dec 19, 2025
https://www.inaturalist.org/observations/331428960

#13 Grass Skipper? Sungai Sedim, Kedah - Dec 19, 2025
https://www.inaturalist.org/observations/331428946

#14 Grass Skipper? Sungai Sedim, Kedah - Dec 19, 2025
https://www.inaturalist.org/observations/331428930

#15 Grass Skipper? Sungai Sedim, Kedah - Dec 19, 2025
https://www.inaturalist.org/observations/331392090

#16 Tagiades? Sungai Sedim, Kedah - Dec 19, 2025
https://www.inaturalist.org/observations/331392086

#17 Tanaecia? Sungai Sedim, Kedah - Jan 3, 2026
https://www.inaturalist.org/observations/333288388

Cheers from Penang, SL Liew

[Psyche]

1.https://www.inaturalist.org/observations/334127447
Tanaecia flora.
The inner margins of the blue bands of both lines up well with slight irregularity.
The HW band typically tapers upwards.


2.https://www.inaturalist.org/observations/334127468
Papilio chaon annulus.
Molecular analysis have indicate two species in the Kedawi region which regularly interbreed.
Typical P. chaon chaon is without the FW subapical band.
Many examples of P. chaon annulus shows traces of the FW cross band indicating gene introgression.
https://yutaka.it-n.jp/pap/10580020.html


3.https://www.inaturalist.org/observations/334127469
Typical male Potanthus ganda.
Abdominal end yellow with just a narrow basal black band.
HW band veins not dark-dusted (image 2).
Un ground dark shaded without forming spots.


4.https://www.inaturalist.org/observations/333724661
Very likely Caltoris sirius.
Antenna with the typical pale area beneath club and part of shaft seen in many Caltoris.
General dull olive brown.
eg.
https://www.inaturalist.org/observations/120954684
https://www.inaturalist.org/observations/117089238


5. https://www.inaturalist.org/observations/333724645
Typical Potanthus omaha.
Abdominal end yellow, HW veins across band dark-dusted; Ground lightly darkened.

[Psyche]

6.https://www.inaturalist.org/observations/333724630
Very likely Jamides celeno.
It seem impossible to seperate celeno and pura consistently from the underside, but celeno is much more common and the FW of the male is more rounded.
https://yutaka.it-n.jp/lyc4/81050010.html
https://yutaka.it-n.jp/lyc4/81060001.html


7. https://www.inaturalist.org/observations/333581103
Typical male Tanaecia godartii.
Band narrow, with very regular margins that aligned smoothly.



8. https://www.inaturalist.org/observations/333581097
Uncertain.
There appear to be only one FW cellspot, but the angular HW also suggest E. hecabe.
https://yutaka.it-n.jp/pie/21240001.html


9. https://www.inaturalist.org/observations/333288404
Eurema ada iona.
There two cellspot (FW).
FW apex rounded off.
https://yutaka.it-n.jp/pie/21380010.html


10. https://www.inaturalist.org/observations/333128402
Very likely Udara cyma.

Both U. cyma and placidula are similar with submarginal spots and HW spot 7 darker than the rest.
U. cyma is darker greyish and the HW spot 7 is larger.
https://yutaka.it-n.jp/lyc4/80780001.html
https://yutaka.it-n.jp/lyc4/80770010.html

[Psyche]

11. https://www.inaturalist.org/observations/333128399
Celastrina lavendularis.
C. lavendularis is marked as in Udara but the ground is rather dark with the discal and postdiscal spots strongly white-halo-ed.
https://wingscales.com/Lycaenidae/Ce...laris-isabella



12. https://www.inaturalist.org/observations/331428960
Pix 1, 2, & 3 Oriens goloides.
Note UnH veins are darkened.
Yutaka image.
https://yutaka.it-n.jp/npict15c/92630001_n002.jpg

Pix 4, & 5 Female Potanthus.



13. https://www.inaturalist.org/observations/331428946
Aeromachus jhora.
Two very similar species.

In A. jhora the antennal club is elongate .
In A. pygmaeus, the the club is rounded.
https://www.ifoundbutterflies.org/si...fd937b4e-1.jpg
https://www.ifoundbutterflies.org/si...301_276708.jpg


14https://www.inaturalist.org/observations/331428930
Astictopterus jama.
Although it looks unusual the head and markings are that of this species.
eg.
https://www.butterflycircle.com/chec...ew%20-%203.jpg
https://www.butterflycircle.com/chec...ew%20-%201.jpg


15. https://www.inaturalist.org/observations/331392090
Iambrix obliquans.
The FW orange band is parallel to the margin.


16. https://www.inaturalist.org/observations/331392086
Tagiades ultra.

T. ultra and litigiosa are very similar.
T. litigiosa have a spot in space 3 often very faint.Abdomen is half white.
In T. ultra the abdomen is white in lower third.
https://wingscales.com/Hesperiidae/T...iosa-litigiosa
https://wingscales.com/Hesperiidae/Tagiades-ultra


17. https://www.inaturalist.org/observations/333288388
Typical male Tanaecia godartii.


TL Seow; Cheers.

[SL Liew]

Thanks so much Dr. Seow. Appreciate your id confirmation with supporting links.

Cheers, SL Liew