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Thread: Help to ID Darts

  1. #1
    Join Date
    Oct 2017
    Location
    Singapore
    Posts
    59

    Default Help to ID Darts

    Dear Dr Seow,

    Appreciate if you could help me ID the following 3 darts, the first 2 shot at Coney Island and the 3rd at Dairy Farm. The first looks like Full Stop Swift (Caltoris cormasa) and the 2nd a Lesser Dart (Potanthus omaha omaha. Not sure what the 3rd is.

    IMG_4807v1.1_Full Stop Swift (Caltoris cormasa).jpg

    IMG_4809v1.1.jpg

    IMG_2345v1.1.jpg

    Thanks a lot.

    Best regards,
    David Chan

  2. #2
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    4,865

    Default

    1. Caltoris cormasa. male.
    The colouration is quite typical here, ie. deep reddish brown UnH.

    2. Potanthus omaha male . Ochreous brown; veins between spots more distinctly dark; abdominal end yellow.
    http://www.butterflycircle.com/check...obby%20Mun.jpg
    http://www.butterflycircle.com/check...drick%20Ho.jpg

    3. Potanthus ganda male .This is worn & so present some difficulties.

    P. ganda male :MOre orangey; veins between spots little or not darkened. Abdominal end yellow .
    http://2.bp.blogspot.com/-7ap54Ani6S...tanthus-sp.jpg
    https://2.bp.blogspot.com/-r1T4ajMPu...25286%2529.jpg

    Other similar species.
    P. serina large species ;Typical with FW spot 5 smaller than spot 4; HW with a small spot 6 on inner corner of band ;abdominal end broadly black-banded.
    Typical male.
    http://www.butterflycircle.com/check...serina-KSK.jpg
    Less typical with FW spot 4 & 5 almost of similar sizes.
    https://www.thaibutterflies.com/wp-c...a-1080x675.jpg

    Potanthus mingo. This is probably not as rare as thought but easily confused with P. ganda.
    Veins between spots not dark; HW with outer margins of band strongly concave & usually marked by dark spots.Abdominal end broadly black-banded.
    Heavily dark example.
    http://3.bp.blogspot.com/-f3wB2A2ujB...0/_MG_1531.jpg
    Normal forms, 2 males, & 1 female(from Thailand).
    http://2.bp.blogspot.com/-LS0GUZQJ9t...tanthus+sp.jpg
    https://static.inaturalist.org/photo...peg?1525699396
    http://www.dnp.go.th/FOREMIC/NForemi...ingo%20(6).JPG

    TL Seow: Cheers.
    Last edited by Psyche; 07-May-2018 at 10:34 PM. Reason: add. pix.

  3. #3
    Join Date
    Oct 2017
    Location
    Singapore
    Posts
    59

    Default

    Dear Dr Seow,

    Thanks for the detailed sharing. Really appreciate it.

    Best regards,
    David Chan

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