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Thread: Skippers ID clarification in Singapore

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  1. #1
    Join Date
    Sep 2020
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    Hi Dr Seow,

    Could you help to verify the following 2 skippers please.

    Thank you!

    1) Potanthus trachala?

    https://www.inaturalist.org/observations/184641821

    2) Caltoris sp. Maybe C. bromus?

    https://www.inaturalist.org/observations/184641820

  2. #2
    Join Date
    Nov 2010
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    Post 106.


    https://www.inaturalist.org/observations/184641821
    1. Potanthus trachala. Female on the left )greyer).
    Note FW spots 4 & 5 are only connected above & below by the spikes to the other.
    HW upper block of the band projected outwards.


    https://www.inaturalist.org/observations/184641820
    2. Caltoris bromus male.

    Three species have more prominent pale areas on the antennal shafts.

    Caltoris bromus
    FW typically with two large subapical spots ;upper cellspot also large.
    HW dark brown & nearly the same tone as FW.
    Female paler, with HW spots 2 & 3.
    Male.
    https://www.inaturalist.org/observations/163945647


    Caltoris cahira.
    FW with large subapical spots (2 usually) & upper cellspot.
    HW dark chocolate brown without red tone contrasting with FW.
    Male.
    https://www.inaturalist.org/observations/183638559
    Female.
    https://4.bp.blogspot.com/-7l1dr3n_g...ris+bromus.jpg


    Caltoris cormasa.
    FW subapical spots small two or often three. Upper cellspot small.
    HW heavily overlaid with redbrown scales.
    Redder tone than in all other species.
    Males.
    https://www.inaturalist.org/observations/151597328
    https://www.inaturalist.org/observations/162264663
    https://www.inaturalist.org/observations/176612106
    https://www.inaturalist.org/observations/178143673
    Note subapical spots are small. Less red example.
    https://www.inaturalist.org/observations/184641828
    Females.
    https://www.inaturalist.org/observations/147253163
    https://www.inaturalist.org/observations/173170595
    https://www.inaturalist.org/observations/173170576

    Caltoris malaya
    Pale area on the antennae weak or none.
    FW subapical spots usually two. Cellspot usually none ,ocassionally a tiny one.
    male rusty brown, female more ochreous.
    Male. Note front antenna no pale area.
    https://www.inaturalist.org/observations/133445751
    Female.
    https://www.inaturalist.org/observations/161212993
    With a tiny upper cellspot but only on the underside.
    https://www.inaturalist.org/observations/181903883

    Other confusion.
    Baoris species.
    FW subapical spots reduced.
    Upper cellspot may be crescentic.
    Antennae mostly black.
    HW may have aq pale area at cellend.
    [B]Abdomen noticeably banded.
    https://www.inaturalist.org/observations/165866621
    https://www.inaturalist.org/observations/151120606

    Female probably B. farri.
    Full complement of spots, black antennae, banded abdomen.
    https://www.inaturalist.org/observations/153765692


    Male Quedara monteithi.
    No FW spot, bulging palpi (labial palps).
    https://www.inaturalist.org/observations/164372780



    TL Seow: Cheers.
    Last edited by Psyche; 25-Sep-2023 at 05:36 AM.

  3. #3
    Join Date
    Sep 2020
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    Singapore
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    Hi Dr Seow,

    Managed to uncover this photo in my archives.

    Could this be Rapala damona?

    https://www.inaturalist.org/observations/184711958

    Thank you!

  4. #4
    Join Date
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    Post 108.

    Yes. It is a female Rapala damona.

    The two R. suffusa & damona are closely similar.
    HW with the postdiscal band in space 1b, above the speckled patch arched or domed.
    FW postdiscal band distinctly curved in toward s the costa.

    Rapala suffusa.
    HW speckled patch in space 1b usually occupy half or less of the marginal zone.
    Orange crown in space 2 not visible, merging with the ground colour.
    Males.
    http://www.butterflycircle.com/check...h_Jonathan.jpg
    https://www.inaturalist.org/observations/59847707
    https://www.inaturalist.org/observations/73307440
    https://www.inaturalist.org/observations/30675458
    https://www.inaturalist.org/observations/122791984
    Females.
    https://s3.amazonaws.com/production-...rop_x_152_.jpg
    http://www.butterflycircle.com/check...lash_Ellen.jpg
    https://2.bp.blogspot.com/-66Xxi-yYP...ash-SunnyC.png
    https://www.inaturalist.org/observations/60172517
    https://www.inaturalist.org/observations/59960237

    Rapala damona.
    HW speckled patch occupy 80% or more of the marginal zone in space 1b.
    HW orange crown not well-defined, weak, obscure or not visible.
    Males
    https://farm5.staticflickr.com/4687/...9e6a2623_c.jpg
    https://www.inaturalist.org/observations/181903884
    https://www.inaturalist.org/observations/183617588
    https://www.inaturalist.org/observations/124369699
    Females.
    https://www.inaturalist.org/observations/184711958
    https://www.inaturalist.org/observations/184248821
    https://www.inaturalist.org/observations/124682032
    https://www.inaturalist.org/observations/184376205


    TL Seow: cheers.
    Last edited by Psyche; 28-Sep-2023 at 06:28 AM.

  5. #5
    Join Date
    Sep 2020
    Location
    Singapore
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    Hi Dr Seow,

    Can I check if this skipper is Parnara bada?

    https://www.inaturalist.org/observations/188256849

    Thank you!

  6. #6
    Join Date
    Nov 2010
    Location
    Malaysia
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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.

  7. #7
    Join Date
    Sep 2020
    Location
    Singapore
    Posts
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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

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