What is this ?

Discussion in 'Plants and Biodiversity Stumpers' started by ginger749, Dec 13, 2006.

  1. ginger749

    ginger749 Active Member

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    No, Not a Doctors note pad.

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  2. globalist1789

    globalist1789 Active Member

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    To my uneducated eyes it looks like worm damage on the inside of a piece of bark. Close?
     
  3. Margaret

    Margaret Active Member 10 Years

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    Was on the tv programme Pilot Guides when it visited the Queensland rain forest of Australia. Can't recall the name of the bug, but it weaves its way eating into the bark and then retraces its tract eating the substrance which the tree uses to heal up the wounds cause by the first pass. Is it called something like scribe or scribble?
    Margaret
     
  4. TonyR

    TonyR Active Member

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    It's the bark of one of the scribbly gums, a small group of Eucalyptus species from east-coastal Australia, mainly NSW. The larva of a small moth tunnels through the innermost bark layer in this zigzag manner. Successive layers of outer bark are shed annually and finally the tunnels, by then filled with wound tissue, are exposed at the bark surface. Last I knew the moth was named Ogmograptis scribula -- translators of scientific names can have fun with that one! There are closely related species that feed on other species-groups of Eucalyptus subgenus Eucalyptus, with small variations in the "scribbles" produced.

    By the way, the picture should be turned 90 degrees.
     
  5. David in L A

    David in L A Active Member 10 Years

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    Greek ogmos-furrow or straight line; graptos- inscribed or painted;
    Diminutive of Latin scriba- a public writer, official scribe, professional writer, clerk, secretary
     
  6. Nandan Kalbag

    Nandan Kalbag Active Member

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    Bark of Eucalyptus?
     
  7. ginger749

    ginger749 Active Member

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    scribbly gum Eucalyptus rossii
    TonyR. You were spot on . Including your observation about the 90 degrees.
    Well done. Here is the original Pic as I took it.



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  8. ginger749

    ginger749 Active Member

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    Same tree With a stink beetle on it.
    The 45 degree scratch marks are Koala claw marks.




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  9. Ron B

    Ron B Paragon of Plants 10 Years

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    Stink BUG, actually. Not a beetle.
     

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