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Thread: [Taiwan][Geo][Larentiinae]

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  1. #1
    Join Date
    Apr 2006
    Location
    Hong Kong
    Posts
    357

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    Quote Originally Posted by Snowywolf View Post
    hihi, just a question.
    does this moth camouflage with the surrounding colours like what a chameleon does?
    coz in the first picture, it looks like the background it's resting on.


    thanks for replying
    No - moths can't change colours in the same way chameleons or some cephalopods can, the pigments are fixed in the scales and the underlying exoskeleton. However, some species (moths and butterflies) which have scales that refract light can have an overlying sheen, usually blue or purple, that is seen at certain angles; this is caused by the structural properties of the scales. Refractive colours are taken to an extreme in the sunset moths (Urania spp.) which have literally every colour of the rainbow visible through this mechanism.

    cheers,

    Roger.
    Roger C. KENDRICK Ph.D.

    C & R Wildlife, Lam Tsuen, Tai Po, N.T., Hong Kong S.A.R.
    HK Moths website: http://www.hkmoths.com
    HK Moths Recording Project on i-Naturalist: http://www.inaturalist.org/projects/hong-kong-moths
    HK Moths Flickr site: http://www.flickr.com/groups/hongkongmoths/

  2. #2
    Join Date
    Jun 2007
    Location
    Westeries
    Posts
    374

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    Quote Originally Posted by hkmoths View Post
    No - moths can't change colours in the same way chameleons or some cephalopods can, the pigments are fixed in the scales and the underlying exoskeleton. However, some species (moths and butterflies) which have scales that refract light can have an overlying sheen, usually blue or purple, that is seen at certain angles; this is caused by the structural properties of the scales. Refractive colours are taken to an extreme in the sunset moths (Urania spp.) which have literally every colour of the rainbow visible through this mechanism.

    cheers,

    Roger.
    Thanks Mr Roger

    Upon your clear explanations, I re-looked at the pictures and found the two moths pretty different too. They might be of different species like you've suggested. Thank you so much for spending time to answer our queries.

    Cheerios,
    Jayne
    ~Sing a Tune with Jayne~

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