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Thread: ID help

  1. #1
    Join Date
    Aug 2020
    Location
    singapore
    Posts
    22

    Default ID help

    Dr. Seow,

    Request ID help for the below species sighted in Singapore.



    Thanks
    Ramesh

  2. #2
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    5,646

    Default

    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/-todEFNke3...C_adult_02.jpg
    https://3.bp.blogspot.com/-dg1jseJPJ...0/DSC_0115.JPG
    https://static.inaturalist.org/photo...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/-WmnlNXMo6...M_adult_03.jpg
    https://1.bp.blogspot.com/-m1O18RS0-...M_adult_01.jpg
    https://www.butterflycircle.com/chec...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/F...857539599).jpg
    https://data.taieol.tw/files/eoldata...52/h34-2-1.jpg

    Caltoris cahira; UnH darker than UnF. Subapical spot 2 ( -3 ).
    https://live.staticflickr.com/5739/2...ca2c13f4_b.jpg
    https://4.bp.blogspot.com/-7l1dr3n_g...ris+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/chec...obby%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/-1cdTLzHI3...0/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-gmG...0/DSC_0156.JPG


    TL Seow: Cheers.

  3. #3
    Join Date
    Aug 2020
    Location
    singapore
    Posts
    22

    Default

    Thanks for the ID Dr. Seow.

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