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Thread: Arhopala Collection for ID

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  1. #20
    Join Date
    Nov 2010
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    Quote Originally Posted by Banded Yeoman View Post
    Interesting.


    I know I am no expert at all to say this,
    But if I remember correctly, a. antimuta has 2 of the hindwing costa spots are not alined, but facing outwards?
    Not sure what you meant Jonanthan, but A. antimuta is readily ID'ed by a combination of three features.
    1. The hindwing postdiscal spot in space 7 sits directly on top that in space 6 so that their inner margins are in line.
    2 The hindwing is tailless.
    3. There is a green tornal patch.
    4. (Additional criterion required )Hindwing postdiscal band usually completedly dislocated at vein 2)

    Have a look at pic 2. The postdiscal spot in space 7 is the one with a tear-line cutting across it. Notice it sits well to the inside of the spot in space 6 (the one below it). The inner margins are staggered & totally out of line.


    Pic 2 is a difficult one. It boils down to whether the postdiscal band is considered fully dislocated (amphimuta & major ) or only partially so (moolaiana & norda) at vein 2. Individual variations mean this feature overlaps.
    In A. major the lunulate spot in space 1b is narrow and J or L -shaped.
    In A. amphimuta it is usually narrow & V-shaped.
    In A. moolaiana & norda, they are broad & v-shaped.

    This one is somewhat in between.
    A. major can be ruled out.

    TL Seow
    Last edited by Psyche; 22-Mar-2012 at 09:34 PM. Reason: additional criterion.wrong space.

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