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Thread: Betong (Yala - Peninsular Thailand), 3 visits in April and June 2017

  1. #1
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    Default Betong (Yala - Peninsular Thailand), 3 visits in April and June 2017

    During my Butterfly Trips this year I visited 3 times the lovely border town of Betong, extreme South of Thailand.
    Although covered by extensive rubber plantations, the area still is source of an amazing number of unusual and often rare butterflies.



    Betomg map v.jpg





    The Southern Nawab - Charaxes hebe chersonesus





    The Distant's Imperial - Mantoides gama gama





    The Grand Imperial - Neocheritra amrita amrita





    The Great Imperial ♀ - Jacoona anasuja anasuja





    The Johor Posy - Drupadia johorensis





    The Lesser Posy - Drupadia rufotaenia rufotaenia

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    Nice Drupadia johorensis
    Aaron Soh

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    Very very similar to D. cinesoides.

    We ID just for a partial upperside of the male

    johorensis.jpg

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    Hmm how can you tell for certain that it's male since both sexes are similar? It's only in cinesoides that they are dimorphic
    Aaron Soh

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    I am also rather confused with this D. johorensis & cinesoides thing.

    I have seen correct images of D. johorensis & the tornal white band is always broader & less constricted at vein 2 , 3 & 4.
    Here are correct images of both species.
    93 & 96 D. cinesoides : 94 & 97 D. johorensis.
    http://archive.org/stream/bulletinof.../n432/mode/1up

    Pix of D. johorensis in Fleming & C&P4 are exactly the same as the above link.

    D. cinesoides.
    http://yutaka.it-n.jp/lyc4/83150001.html


    TL Seow : Cheers.

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    We examined the upper of both species and I can confirm the ID of the species from Betong.

    Funny thing is that upperside male cinesoides is same as that of the female johorensis.



    These are Drupadia cinesoides from Betong (© Satawan Atdhabhan)


    cinesoides.jpg




    and these are Drupadia johorensis from Betong mating (© Satawan Atdhabhan)


    johorensis 2.jpg

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    Post 6.

    I presume the mating pair of johorensis is undoubted, ie that the pair have been caught & set or the uppersides of both sexes are seen & identical to the female johorensis.
    This is important because the one on the left which looks like the female is no different from the underside of the female cinesoides above it.

    If so, then the only difference is the leg band . the tibia is double black -banded in cinesoides & mostly single-banded in johorensis ,with the upper tibial band faint or missing.

    TL Seow: Cheers.
    Last edited by Psyche; 16-Aug-2017 at 02:21 AM.

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    Quote Originally Posted by Psyche View Post
    Post 6.

    I presume the mating pair of johorensis is undoubted, ie that the pair have been caught & set or the uppersides of both sexes are seen & identical to the female johorensis.
    This is important because the one on the left which looks like the female is no different than the underside of the female cinesoides above it.
    I think the right one is female because females tend to have more intense orange.

    That said the females of both spp. are very difficult to tell apart from field shots because they are both a similar shade of orange ventrally and how intense this orange is can be subjective. For males, the contrast between the two is quite obvious
    Aaron Soh

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    Quote Originally Posted by Angiud View Post
    We examined the upper of both species and I can confirm the ID of the species from Betong.

    Funny thing is that upperside male cinesoides is same as that of the female johorensis.

    cinesoides.jpg

    These are Drupadia cinesoides from Betong (© Satawan Atdhabhan)
    I think you mean "male johorensis is same as that of female cinesoides"

    The ventral shots seem swapped; the paler orange one should be male, as their wing shapes also imply
    Aaron Soh

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    Quote Originally Posted by atronox View Post
    I think the right one is female because females tend to have more intense orange.

    That said the females of both spp. are very difficult to tell apart from field shots because they are both a similar shade of orange ventrally and how intense this orange is can be subjective. For males, the contrast between the two is quite obvious
    I have thought so too that the left was male because the palpi 3rd segments were shorter.

    TL Seow:Cheers.

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