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Thread: Skippers ID clarification in Singapore

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  1. #1
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    Ok thanks for clarifying Dr Seow.

    Apologies for adding on but two more skippers for verification please.

    Could this be Erionota thrax based on the almost straight termen and acute forewing apex?

    DSC_0997.jpg

    Also, is the following sufficient to ID it to Astictopterus jama?

    DSC_1073.jpg

    Thank you!

  2. #2
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    Post 7.

    1. Female Erionota acroleuca apicalis.

    E. acroleuca is by far the commonest species in Singapore as its larva feeds on various palms while that of E. thrax & torus feed on Banana which would be a rare plant in Singapore.


    E. acroleuca. Smaller than the other two. FW 25/27 mm.
    Male antennal club wholly white above; female about half white.
    FW margin straight.
    HW patch constricted/narrowed in the upper half.
    Males.
    http://www.butterflycircle.com/check...nny%20Chir.jpg
    http://www.butterflycircle.com/check...drick%20Ho.jpg
    Females.
    https://2.bp.blogspot.com/-oGOIfwCnq..._female_01.jpg
    https://ftp.funet.fi/index/Tree_of_l.../torus-2fv.jpg



    E. thrax. large FW 31/37 mm.
    Male with antennal club 2/3 - 3/4 white; Female about half white.
    FW margin straight.
    HW patch more or less uniformly wide.
    Males.
    https://wanderingbutterflyeffect.fil...0f3c25860d.jpg
    http://www.farelli.info/pages_books/...nota_thrax.htm
    Females.
    https://upload.wikimedia.org/wikiped...ota_thrax1.jpg
    https://www.ifoundbutterflies.org/me...unte_ag436.jpg



    E. torus Large FW 30/36 mm.
    Male antennal club 2/3- 3/4 white; female about half white.
    FW margin convex.
    HW patch broad throughout.
    Male.
    https://inaturalist-open-data.s3.ama...9/original.jpg
    Females.
    http://www.butterflycircle.com/check...2012--0882.jpg
    https://alchetron.com/cdn/erionota-t...esize-750.jpeg

    On the continent E. torus have more rounded FW eg India.
    https://en.wikipedia.org/wiki/Eriono...-06-10-001.jpg




    2. Astictopterus jama.
    Note winhgshape & prominent bulging palpi (labial palps).
    http://www.butterflycircle.com/check...ew%20-%203.jpg
    http://www.butterflycircle.com/check...ew%20-%201.jpg



    TL Seow: Cheers.
    Last edited by Psyche; 26-Dec-2021 at 02:15 PM.

  3. #3
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    Thanks Dr Seow!

    And yes i did not notice any bananas where I found the Erionota

  4. #4
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    Can I add on this species.

    Could this be Potanthus serina?

    DSC_0478.jpgDSC_0428.jpg

    Thanks in advance!

  5. #5
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    Post 10.

    Female Telicota besta. Very worn.

    All Potanthus have on the HW underside a large rectangular in space 7 ie spot 7, that is lacking in Telicota.
    Potanthus serina male & female.
    http://www.butterflycircle.com/check...serina-KSK.jpg
    https://4.bp.blogspot.com/_rzo8wjfyC...t_female_c.jpg


    Female T. besta Underside HW veins dark dusted; FW upperside with one long & one short cellend bars.
    https://4.bp.blogspot.com/-OEM0FaXJU..._female_01.jpg
    https://2.bp.blogspot.com/-P5w37zUj7...male_up_01.jpg

    Female T. linna Underside HW veins not dark dusted; Upperside FW with two short cellend bars.
    http://www.butterflycircle.com/check..._female_02.jpg
    http://www.butterflycircle.com/check...male_up_01.jpg


    The underside have the HW veins dark dusted; 2nd pic show one of the long cellend bar.


    TL Seow: Cheers.

  6. #6
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    Hi Dr Seow,

    I would like to seek confirmation that the following are Pelopidas mathias?

    I based it on the paler wing margins on the right individual and the general more grey-ish appearance.

    Thank you.


    DSC_0263-2.jpg

  7. #7
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    Post 12.

    These are typicak Pelopidas mathias, the male on the right is more strongly grey-tinged.
    The grey gives P. mathias a dirty look.

    P. agna.
    https://inaturalist-open-data.s3.ama...5328/large.jpg
    https://static.inaturalist.org/photo...802/large.jpeg


    TL Seow: Cheers.

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