ID help needed (26 Aug 2022)

[Blue Nawab]

Dear Dr Seow, is this Nacaduba berenice icena or Ionolyce helicon merguiana? Thanks!

27894

Is this Malay Yeoman?
27895

[Psyche]

1. Male Nacaduba beroe.
Fairly typical.
FW with innermost costal spot (above the mid-cell band) absent.
Dark striae within bands largely obsolete.
HW submarginal spot in space 3 above the black spot lunulate (cescent) not pointed.
https://inaturalist-open-data.s3.amazonaws.com/photos/201866113/large.jpeg
https://inaturalist-open-data.s3.amazonaws.com/photos/38235224/large.jpg


Ionolyce helicon.
Can look similar to N. beroe.
FW innermost costal spot absent.
FW postdiscal band serially dislocated.
https://inaturalist-open-data.s3.amazonaws.com/photos/208679699/large.jpg
https://inaturalist-open-data.s3.amazonaws.com/photos/181632981/large.jpeg


Nacaduba berenice.
FW inner costal spot almost always present.
FW postdiscal band dislocated or crooked.
Dark striae with bands strongly developed.
https://inaturalist-open-data.s3.amazonaws.com/photos/215674214/large.jpg
https://inaturalist-open-data.s3.amazonaws.com/photos/219052682/large.jpg

[Psyche]

If this is taken in Singapore than it is a new record.

Cirrichroa surya siamensis. Correction: Cirrochroa malaya.
UnF discal band expanded upwards to the costa.
HW white discal band narrow ,of uniform width throughout.
http://www.samuibutterflies.com/expeditions/nymphalinae/cirrochroasurya/
http://yutaka.it-n.jp/hel/710190010.html

30 years ago this was still largely known from the northern half of Peninsular Malaysia.


Cirrochroa emalea emalea.
UnF band expanded at costa but more widely.
Hw discal markedly constricted in space 5.
http://www.butterflycircle.com/checklist/mugshots/Cirrochroa%20emalea%20emalea/MalayYeoman-KSK2.jpg
http://www.butterflycircle.com/checklist/mugshots/Cirrochroa%20emalea%20emalea/malay-yeoman-khew.jpg


C. tyche.
UnF discal of nearly uniform width, the inner margin very irregular.
https://1.bp.blogspot.com/-_5lIYcugipw/VZ9uVFptEoI/AAAAAAAAixk/Tu4PiHGqR1Y/s1600/CommonYeoman_Khew_03.jpg
https://1.bp.blogspot.com/-gH0F2cUzTP0/VZ9l2JqXG1I/AAAAAAAAivY/7AlzYdyBh5Y/s1600/CommonYeoman_Frederick_01.jpg



TL Seow: Cheers.

[Psyche]

Correction: 2 is definitely Cirrochroa malaya.

This species resembles C. surya on the underside is found in Sundaland but seem not in Thailand.
The upperside resenbles C. emalea.
https://en.wikipedia.org/wiki/Cirrochroa_malaya#/media/File:Cirrochroamalayamalaya.jpg
The underside resembles C. surya.
Pahang.
https://farm5.static.flickr.com/4017/4496736026_7b8c9065e3_o.jpg


TL Seow; Cheers.