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Thread: Arhopala paraganesa / aberrans / or not.

  1. #1
    Join Date
    Dec 2016
    Location
    Thailand
    Posts
    554

    Default Arhopala paraganesa / aberrans / or not.

    An Arhopala photographed on Doi Suthep, n. Thailand, at 500 metres, this week.

    Although I have other images of both Arhopala paraganesa and aberrans from north Thailand, this one differs in several respects which makes me doubtful, although I have no other suggestions for which species this might be.

    The main features I note which make me doubtful are:
    - the clear edge of the underside forewing costa, below the upper dark band. This area would usually be marked with a few lines and spots.
    - the shape of the spots on the lower/inner area of the hindwing are rather circular. In my experience these spots would usually be more elongate.
    - the pale spot on the costa of the hindwing is rather small.

    I note on the upperwing (if this is a female) that there is no tooth mark which should be present on aberrans. So is this was a male paraganesa surely the blue on the hindwing would not continue to the dorsum?

    Note, although the upperside shot was taken at the same time/place of the underside shots, I cannot guarantee the upperside image is the same individual, so there is a small possibility that the upperside shot in a different species, though I think not.

    [An update after posting - after further searching of images on the web, might this be A. alesia? Seems a reasonable fit and gets around some of the issues mentioned above].

    With thanks.

    409A4094.JPG

    DSC_7105.JPG

    409A4095.JPG
    Last edited by DaveChiangMai; 03-Feb-2021 at 03:18 PM.

  2. #2
    Join Date
    Nov 2010
    Location
    Malaysia
    Posts
    6,846

    Default

    Arhopala alesia sacharja.

    The upperside & underside match that of Arhopala alesia correctly.
    The long palpi (labial palps) & UpF blue without the black cellend mark indicate a female.

    UnF bands are darkly contrasting.
    UnH spots in the basal third are rounded.
    UpH blue extend to the margin in the tornal third & dorsum.
    http://yutaka.it-n.jp/lyc4/82350010.html


    http://yutaka.it-n.jp/lyc4/82520010.html
    http://yutaka.it-n.jp/lyc4/82570001.html



    TL Seow: Cheers.

  3. #3
    Join Date
    Dec 2016
    Location
    Thailand
    Posts
    554

    Default

    Many thanks for the detailed confirmation.

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