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Thread: Mycalesis

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  1. #1
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    I didn't realised that the taxon distanti is now separated rom intermedia as a distinct species.

    The dsf of M perseus in my previous is probably incorrect.

    Even in dsf the alignment of the eyespots should remain the same. Thus since the 3 hindwing spots (their centre dots actually) are almost in alignment we can rule out M. perseus.

    This leaves the dsf of M. intermedia & distant.

    M. intermedia typically have 2 forewing spots , thus 2 dots in dsf; also the upper end of the white band on the hindwing is angled in (probably inconsistent feature).
    Here is a valid dsf example.
    http://www.ifoundbutterflies.org/185...sis-intermedia

    This leaves the dsf of M. distanti to consider.

    TL Seow
    PS. It does get very confusing as I don't know which of the images on the net are correct, but I believed it is one of these , perseus, intermedia, & distanti.

  2. #2
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    On the assumption that none of the northern species have invaded KPN, I am trying to see whether the identity can be deduced by a process of elimination.
    It seems the extreme dsf of all spp. can have very similar patterns with a yellowish diffusion of the white band. As to why it occur during the wet season it is a mystery.

    Here is a correct image of a dsf M. perseus from India.
    Notice the dots in space 2 & 3 are well out of alignment with the 2 dots in space 1b.
    http://en.wikipedia.org/wiki/File:Co...W_IMG_4190.jpg
    I think we can safely ruled out M. perseus.

    M. intermedia & distant usually have 2 spot on the forewing, and the white band with the upper end angled in.
    http://www.ifoundbutterflies.org/185...sis-intermedia
    I think we can rule these 2 out.

    M. perseoides often have 4 spot on the forewing & would be a prime candidate, but the sub-basal dark line typically form a tooth at space 1b.
    http://blog-imgs-42.fc2.com/s/p/a/sp...20110122-1.jpg
    I think we can rule this one out as well.

    This leaves visala & mineus . Example of visala drawings.
    http://upload.wikimedia.org/wikipedi...salaDSF_64.jpg
    Example of mineus dsf. M. mineus typically have 2 (at most 3) spots on the forewing.
    http://upload.wikimedia.org/wikipedi...W_IMG_4180.jpg

    It looks like the most likely candidate is visala.

    TL Seow
    PS. It looks like the dsf of visala is quite different.
    http://www.ifoundbutterflies.org/185...calesis-visala
    Its back to square one.
    The greatest similarity visually is with perseus pic 9 here, but the alignment of the spots don't match.
    http://www.ifoundbutterflies.org/185...alesis-perseus
    Last edited by Psyche; 26-Dec-2011 at 02:30 AM. Reason: PS.

  3. #3
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    Thanks Dr. Seow for the big and interesting explanations. I'll follow to check the Mycalesis in my area to see for the different decorations wet-dry season.

  4. #4
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    I gathered from your comment in post 1 that both franscisca & gotama have been recorded in KPN.
    I had checked these out. Both have 2 spots on the forewing underside, not counting those little satellites. Typically they leave only 2 white dots in dsf.
    There are enough examples of both on the net for comparison.

    Your pic have 4 white dots nicely spaced out on the forewing.
    3 species typically have 4 spots on the forewing , perseus, perseiodes, & visala.
    The misalignment of the hindwing spots in perseus is quite constant, eg even in this Australian ssp. dsf.
    http://www.purvision.com/butterflies/
    M. visala as we had seen on the Indian website have a radically different dsf.
    http://www.ifoundbutterflies.org/185...calesis-visala

    This leaves M. perseoides. The 'tooth' at the lower end of the subbasal line at vein 1b is variable and can be quite open, eg
    http://www.butterflycircle.com/check...20-%20Khew.jpg
    Your pic actually shows a tooth at the same point although it is not so clear-cut.
    The dsf of perseoides can present with a similar pattern & colouration as shown in these drawings of the original description.
    http://commons.wikimedia.org/wiki/Fi...oides_60_2.jpg
    I am unable to find a valid matching image on the net.

    I may be wrong, but my money is on perseoides. (or should that be baht?)

    TL Seow

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