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Thread: ID needed for Arhopala

  1. #1
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    Default ID needed for Arhopala

    Dear Dr Seow, what's the ID for this Arhopala taken in Langkawi? Thanks!
    Cher Hern

  2. #2
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    Male Arhopala major.
    In general HW postdiscal spot 1b which is V-shaped has the upper arm shorter.
    Singapore.
    http://3.bp.blogspot.com/-xkuMajucBn...jor+(male).jpg

    A. amphimuta has the HW spot 1b with equal arms. (Upperside all blue HW confirmed the ID here.)Singapore.
    http://4.bp.blogspot.com/-J9Xmngyim6...+amphimuta.jpg

    In Langakawi two other species of the amphinuta group are very similar.
    THe HW has a more prominent white spot at the tornal cilia, but this is often obscured.

    A. norda ronda. HW spot 1b narrow V. Thailand.
    https://www.flickr.com/photos/angiud/8267076824/
    A. moolaiana. HW spot 1b a fat V. Langkawi.
    http://www.samuibutterflies.com/02_i...oolaiana.v.jpg


    TL Seow: Cheers.

  3. #3
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    Dear Dr Seow, Arhopala Major Major is yet to be listed in Langkawi Butterfly List (Dr Kirton), could it be Arhopala amphimuta milleriana instead? Thanks!
    Cher Hern

  4. #4
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    Quote Originally Posted by Blue Nawab View Post
    Dear Dr Seow, Arhopala Major Major is yet to be listed in Langkawi Butterfly List (Dr Kirton), could it be Arhopala amphimuta milleriana instead? Thanks!
    Yes it should be A. amph.imuta.
    The two can be very similar as discussed in the past.
    Confirmed A. amphimuta.
    https://species.wikimedia.org/wiki/A...naMUpUnAC1.jpg
    http://1.bp.blogspot.com/-yG1leEZCs5...ta_Mark_01.jpg
    Below same individual.
    http://2.bp.blogspot.com/_yzw2AzY2du...la+-+Jason.jpg
    http://3.bp.blogspot.com/_yzw2AzY2du...la+-+TanCP.jpg

    Confirmed A. major.
    http://3.bp.blogspot.com/-xkuMajucBn...jor+(male).jpg
    http://3.bp.blogspot.com/-adki2BwuGB...t_Ellen_01.jpg
    More typical A. major where the upper arm of the V spot is very short.
    http://www.butterflycircle.com/check...erick%20ho.jpg

    TL Seow: Cheers.
    PS. A useful feature is that in A. major The HW postdiscal band from vein 2 to vein 6 (after the V spot) is always strongly dislocated in the middle at vein 4.
    In A. amphimuta it is usually more or less in line, but occassionally broken as in A. major as shown by the male from Krabi Thailand.
    Last edited by Psyche; 09-Dec-2016 at 12:29 AM. Reason: PS

  5. #5
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    Thanks Dr Seow!
    Is this Arhopala ariana from Langkawi?
    Cher Hern

  6. #6
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    Post 5.

    Arhopala lurida. HW postdiscal spots 5, 6, & 7 staggered ie ech is set in farther from the one before it.
    https://species.wikimedia.org/wiki/A...daMUpUnAC1.jpg
    http://4.bp.blogspot.com/-RsKPooOdJp...rida+(TBC).jpg

    A. atosia is very similar but spots poorly contrasted, HW spot 4 & 5 usually well separated.
    https://species.wikimedia.org/wiki/A...aMFUpUnAC1.jpg
    http://4.bp.blogspot.com/-HeaqxUa0Tz...0/DSC_0138.JPG

    A. ariana have HW spot 7 directly on top of spot 6; FW with costal spots 10 & 11.
    http://www.samuibutterflies.com/inse...rhopalaariana/

    TL Seow :Cheers.

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