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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

  7. #7
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    Post 6.

    Yes, this is typical E. acroleuca.

    TL Seow: Cheers.

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