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Thread: Which Erionota?

  1. #1
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    Default Which Erionota?

    Raised from caterpillar feeding on MAcArthur Palm. Unfortunately the wings are slightly deformed.
    IMG-20170309-WA0020.jpg

  2. #2
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    Female Erionota torus.

    Female Erionota have the antennal club half white above.
    Males of E. torus & thrax have the club 3/4 white ;E. acroleuca male have the antennal club wholly white above.

    E. torus: FW outer margin convex; HW discal patch relatively broad throughout.
    Male & female.
    http://dearlep.tw/images/Papilionoid...DSC_6698_1.jpg
    http://taibnet.sinica.edu.tw/uploads...%20torus_a.jpg

    E. thrax : FW outer margin straight : HW patch more or less broad throughout.
    Male & female.
    https://wanderingbutterflyeffect.fil...0f3c25860d.jpg
    http://ataxus.com/ak5t/hawaii/j04oc15l.jpg

    E. acroleuca.(research shows taxon hiraca is actually the later name & thus a junior synonym.)
    FW outer margin straight; HW patch more irregular & narrowed in the upper half.
    1 male & 3 female.
    http://www.butterflycircle.com/check...nny%20Chir.jpg
    http://2.bp.blogspot.com/-s7fKLefxl0...ed-Skipper.jpg
    http://2.bp.blogspot.com/-oGOIfwCnqF..._female_01.jpg
    http://ftp.funet.fi/index/Tree_of_li.../torus-2fv.jpg

    TL Seow: Cheers.
    Last edited by Psyche; 11-Mar-2017 at 12:06 AM. Reason: add. pix.

  3. #3
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    What about this - E.torus or E.hiraca? This is a wild specimen recorded yesterday.
    Torus.jpg

  4. #4
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    Post 3.
    Male Erionota acroleuca (= hiraca )

    Underside HW dark contrasted ,speckled .The upper half narrowing of the band less obvious.
    FW outer margin lower 2/3 straight.
    Antennal club broadly white above.
    Two males & 2 females.
    http://2.bp.blogspot.com/-p2SDDi_BlE...2Bapicalis.jpg
    http://www.butterflycircle.com/check...0-%20sunny.jpg
    http://2.bp.blogspot.com/-BTL8Ck0uBE..._female_04.jpg
    http://2.bp.blogspot.com/-oGOIfwCnqF..._female_01.jpg


    E. torus.
    HW underside less dark contrasted & may have a washout appearance; HW band relatively broad throughtout.
    FW outer margin (termen) convex from the apex downwards.
    Antennal club in mae about 3/4 white above.
    2 males & 2 females.
    https://upload.wikimedia.org/wikiped...-06-10-001.jpg
    http://www.nbair.res.in/insectpests/...ta-torus20.jpg
    http://www.butterflycircle.com/check...2012--0882.jpg
    http://www.dnp.go.th/FOREMIC/NForemi...orus%20(1).JPG


    E. thrax 2 males & 3 females.
    http://www.ifoundbutterflies.org/med...553af268-1.jpg
    http://www.butterflycircle.com/check...20-%20Khew.jpg
    https://farm9.staticflickr.com/8369/...9fa0b6bb_b.jpg
    http://www.ifoundbutterflies.org/med...unte_ag436.jpg
    http://www.samuibutterflies.com/02_i.../underside.jpg


    The three species can be very similar.
    It had been stated that all records of Erionota on palms are probably E. acroleuca (hiraca) & E. torus & thrax probably feed only on Musa (banana).
    Past misidentification have cause all the confusion.
    The sdame authors state that palm leaves are unsuitable for the leaf rolling habit of E thrax & torus.

    However, your post 1 female looks typically E. torus & may be a first record on palm.
    If you can rear a pair it should clear all doubts regarding the species & hostplant.

    TL Seow: Cheers.
    Last edited by Psyche; 21-Mar-2017 at 03:55 PM. Reason: add. pix.

  5. #5
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    Thanks Dr Seow. I will look out for more caterpillars.

    Yes, the leaf shelter is different from the E.hiraca that I have raised before.

  6. #6
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    Found and raised two caterpillars feeding on MacAuthur Palm. Think they are E.acroleuca.
    20170407A.jpg

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    Post 6.

    Yes, this is typical E. acroleuca.

    TL Seow: Cheers.

  8. #8
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    Last week I found 3 pupae on my banana.

    This is E.thrax as the forewing termen is straight.
    BananaSkipper 201907110044.JPG

    Would the termen for these two be convex enough for them to be E.torus?
    WhatsApp Image 2019-07-10 at 18.28.35.jpg
    WhatsApp Image 2019-07-11 at 19.20.34.jpg

  9. #9
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    Post 8.

    Perfect. You have E. thrax & 2 E. torus.
    Strangely they are all females. (antennal club half white).

    TL Seow: Cheers.

  10. #10
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    Thank you.

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