ID help

[anuramsh]

Dr. Seow,

Request ID help for the below species sighted in Singapore.



Thanks
Ramesh

[Psyche]

1 & 2 Caltoris cormasa.

Plain skippers are particularly hard to ID because the great variaton in colou r in photos.

The 4 similar species in Singapore. may be grouped thus.


FW with the spots yellowish.

1. C. cormasa; UnH deeper, darker than UnF, often with a noticeable red brown tone.
FW subapical spots 3 ( -2) . BY far the commonest species.
https://3.bp.blogspot.com/-todEFNke3BQ/VDFzNJu8OqI/AAAAAAAAfNk/uPMm6tvEcLg/s1600/CC_adult_02.jpg
https://3.bp.blogspot.com/-dg1jseJPJ2g/VMOMMYRta1I/AAAAAAAATvM/76OWCJaA7Yc/s1600/DSC_0115.JPG
https://static.inaturalist.org/photos/2464959/large.jpg?1443780895

2. Caltoris malaya. UnF & UnH nearly equal in colouration. FW without cellspot.
FW subapical spots 2 ( -1 ). Male underside rusty brown, female ochreous.
https://2.bp.blogspot.com/-WmnlNXMo61M/VuQNhknKELI/AAAAAAAAlxY/SSSTCY3PvcoXFsgHhjCkHZEgpj1rE_BQQ/s1600/CM_adult_03.jpg
https://1.bp.blogspot.com/-m1O18RS0-KI/VuQNc-vUBAI/AAAAAAAAlxU/K54dWi9wBgM08McCrCjGDcUCTKq14MWIQ/s1600/CM_adult_01.jpg
https://www.butterflycircle.com/checklist/mugshots/Caltoris%20malaya/Caltoris-malaya-(Malayan-Swift)-02F---Horace-Tan.jpg


FW with whitish spots.

Caltoris bromus ; UnF & UnH colour nearly equal. FW subapical spots 2 ( -3 )
Female UnH may 1-2 spots in space 2 & 3.
https://commons.wikimedia.org/wiki/File:67%E7%84%A1%E7%B4%8B%E5%BC%84%E8%9D%B61(%E9%8 2%B1%E7%BE%8E%E8%98%AD%E6%94%9D)_(18857539599).jpg
https://data.taieol.tw/files/eoldata/imagecache/taieol_img/images/252/h34-2-1.jpg

Caltoris cahira; UnH darker than UnF. Subapical spot 2 ( -3 ).
https://live.staticflickr.com/5739/21680122591_88ca2c13f4_b.jpg
https://4.bp.blogspot.com/-7l1dr3n_gKc/UNkf7-O6cQI/AAAAAAAAIJg/leZVbtGOi8k/s1600/DFP+2252+Caltoris+bromus.jpg


3. Jamides celeno. By far the commonest.

3 species similar with UnF straight postdiscal band.

J. celeno HW striae variably arraned, sometimes chaotic ; HW tornal spots with short silvery bars . UpF black border broader.
https://www.butterflycircle.com/checklist/mugshots/Jamides%20celeno%20aelianus/148%20Jamides%20celeno%20aelianus%20(Common%20Caer ulean)%20%20Bobby%20Mun.jpg

J. pura; UnH striae often well-arranged ;tornal black spot with twin long silvery bars. UpF black border very narrow.
https://1.bp.blogspot.com/-1cdTLzHI39w/U0o9K9A5C1I/AAAAAAAAN3U/w6UbIKJHNIM/s1600/DSC_0122.JPG

J. malaccanus.UnH with all striae of equal lenght & forming 3 complete bands inside of the submarginal spots.
https://4.bp.blogspot.com/-GN98b-gmG2o/VlMtj4PS-DI/AAAAAAAAXlE/lqqdROWXf9s/s400/DSC_0156.JPG


TL Seow: Cheers.

[anuramsh]

Thanks for the ID Dr. Seow.