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Thread: Skippers ID clarification in Singapore

  1. #111
    Join Date
    Nov 2010
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    Post 110.
    https://www.inaturalist.org/observations/188256849
    Yes. It is.
    PARNARABB.png

    Parnara species.
    antennae short & the clubs thick.
    UpF subapical spots 6 & 7in line; if spot 8 is present, it is usually also in line.
    UnH may have a diffuse cellend spot.
    UnH spot 7 is always absent.

    Two known species in Singapore.


    Parnra bada.
    unH spots variable & may be entirely absent.
    https://yutaka.it-n.jp/hes/93050001.html
    https://www.inaturalist.org/observations/145116379
    https://www.inaturalist.org/observations/186224442
    https://www.inaturalist.org/observations/135756671
    https://www.inaturalist.org/observations/185704994


    Parnara ganga.
    https://yutaka.it-n.jp/hes/93040001.html
    https://www.inaturalist.org/observations/7874934
    https://www.inaturalist.org/observations/135217962
    https://www.inaturalist.org/observations/140252167


    Probably this below is Parnara ganga.
    FW spot 3 is oblong & seem nearer spot 2,( the margins of spot 2 blurry) & UnH spots relatively large.
    https://www.inaturalist.org/observations/33117386


    Tl Seow: Cheers.
    Last edited by Psyche; 23-Oct-2023 at 07:51 AM.

  2. #112
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    Sep 2020
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    Singapore
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    Hi Dr Seow,

    Could you help to shed light on what this Arhopala could be?

    Thank you.

    https://www.inaturalist.org/observations/189320986

  3. #113
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    Post 112.
    https://www.inaturalist.org/observations/189320986

    This practically certain to be a female Arhopala milleri.
    Note the longer palpi (labial palps) The abdominal end with a longer slant cut.
    Compare with a male A. sublustris given below.



    Three species recorded in Singapore are very similar & almost impossible to identify correctly.

    A. sublustris is the most common
    UnF postdiscal band uppermost spot 9 is typically dislocated & shifted inwards on the costal margin.
    UnH spot 6 widest at the top & tapers down wards.
    Male upperside bright blue, more reflective.
    Female with HW brown border wide. FW blue not reaching the tornal margin, brown border being uniformly broad
    https://yutaka.it-n.jp/lyc4f/82170010.html
    This is likely A. sublustris male.
    https://www.inaturalist.org/observations/189202433
    See Otsuka L206.


    A. milleri.
    UnF postdiscal band spot 9 less dislocated ,sometime in line with the rest.
    HW spot 6 as in A. sulustris
    Male darkisk less reflective blue.
    Female UpF blue reaches tornal margin ,HW brownish blue reaches the margin.
    https://yutaka.it-n.jp/lyc4f/82160001.html
    see Otsuka L207 for female.


    A. normani .
    UnF spot 9 slightly dislocated.
    UnH spot 6 with the side margins straighter.
    Male upperside darker blue than A. sublustris.
    Female as in A. sublustris.
    https://yutaka.it-n.jp/lyc4f/82140001.html
    Otsuka L212.


    If you don't have Otsuka you can get a free download.
    http://www17.plala.or.jp/jamides/Bor.../borneo-e.html

    It looks a perfect match.


    TL Seow :Cheers.

  4. #114
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    Sep 2020
    Location
    Singapore
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    Hi Dr Seow,

    could the following skipper be Pelopidas assamensis?

    It was way larger than P. mathias and P. agna; roughly 1.5x P. conjuncta with large FW spots.

    https://www.inaturalist.org/observations/191449162

    Thank you!

  5. #115
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    It is a female Pelopidas conjunctus.

    The two larger species differs in that both sexes have a spot in FW space 1b (both sides).

    In P agna & mathias, only the female have this spot.

    Size reference.
    P. mathias FW 16-18mm.
    P. agna FW 17-20 mm.

    P. assamensis is very large FW 25.5- 26.5 mm.
    FW & HW with prominently white spots, large on the FW.
    Antenna with a white band that goes nearly all round.
    Females
    https://www.inaturalist.org/observations/31291038
    https://www.nparks.gov.sg/-/media/ff...46f461e50.ashx
    Probable male.
    https://www.butterflycircle.com/chec...0Ben%20Jin.jpg


    Pelopidas conjunctus FW 21.5 to 23.5 mm.
    Antenna with a pale area mostly on the underside & not prominent.
    UnH spots are white but UnF spots are yellow & large.
    Males.
    https://www.inaturalist.org/observations/151597347
    https://www.inaturalist.org/observations/19877822
    Females.
    https://2.bp.blogspot.com/-FvDO3Lfw_...lt_Khew_03.jpg
    https://www.inaturalist.org/observations/155888799
    https://www.inaturalist.org/observations/132122838

    Much more common than P. assamensis.


    TL Seow: Cheers.
    Last edited by Psyche; 22-Nov-2023 at 04:29 AM.

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