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Thread: ID requests

  1. #41
    Join Date
    Mar 2022


    Thank you Dr Seow!
    Jian Kai

  2. #42
    Join Date
    Mar 2022


    Quote Originally Posted by LJK1410 View Post
    Hi Dr Seow,

    I got some Arhopalas that I'm not too sure about. I know this group is really difficult for a definitive ID but any pointers would be much appreciated!

    1. Arhopala athada? Thought the HW spots 6 & 7 seem quite different from a typical A.athada. Could it be something else? Shot at Upper Seletar Reservoir.
    Attachment 28452

    2. Arhopala sublustris? I recall the size was smaller than A.athada. Shot at Bukit Timah Nature Reserve.
    Attachment 28453
    Attachment 28454

    3. alea subgroup. This one was shot in Panti Forest, Johor, Malaysia.
    Attachment 28455
    Attachment 28456

    4. Another alea subgroup from Panti Forest, but no upperside shots.
    Attachment 28457
    Hi Dr Seow,

    I was relooking at the first Arhopala and thinking if it could be A.lurida. It seems to match the features you mentioned on the other thread. FW PD spot 4 dislocated and shifted outwards, HW PD completely dislocated at vein 2, HW spot 7 also shifted inwards, the markings are also contrasting quite heavily. I reattached some other shots of the same butterfly, with a glimpse of the dorsals. I've kept the editing to bare minimum, only touching the exposure slightly. Though I canít say for certain since the most important part is blocked, but the dorsal borders do seem to be widening towards the apex.

    Jian Kai

  3. #43
    Join Date
    Nov 2010


    The Oakblues can be very difficult even if you have a specimen in hand.

    There are some errors in the past to clear up.

    The epimuta group.
    Fw with spot 4 distinctly dislocated & shifted out (visible from both margins).
    HW with postdiscal spots 5, 6, & 7 staggered in a stepladder fashion.
    HW 'V" spot in space 1b narrow & well-formed.
    HW tornal green metalmark sharply demarcated with 2-3 black spots.
    A. epimuta
    A. atosia.
    A. lurida.

    The cleander group.
    FW postdiscal spot 4 in line with the rest above it (spots 5, 6, & 9),Less often there may be a slight dislocation outwards of spot 4.
    HW postdiscal spots 5, 6, & 7 not arranged in a stepladder fashion, spot 7 being on top of spot 6.
    "V" spot in space 1b not well-formed.
    HW tornal green metalmark poorly defined with a diffuse inner border.

    A. sublustris , alea subgroup.
    A. athada athada. cleander subgroup, large.
    A. silhetensis adorea. cleander subgroup.
    Last edited by Psyche; 21-Mar-2024 at 07:07 PM.

  4. #44
    Join Date
    Nov 2010



    The wide spacing between the postdiscal & the submarginal spots on the HW is indicative of a large species.
    The oblique shape of HW spot 6, wider at the top is indicate of A. silhetenssis.
    A. athada always have a blocky spot 6 nearly astride the cellend & spot 5.


    The dull blue upperside already indicate it is A. milleri.

    The upperside merely shows a female.
    The straighter parallel sides of spot 6 suggest A. normani.

    Probably A. sublustris.
    FW spot 8 is more dislocated inwards.

    Finally this observation which I thought was A. lurida is an alea group member.
    Note mwtalmark with diffuse border.

    TLSeow; Cheers.

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