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751 Views 1 Reply Last post: Mar 9, 2014 1:33 AM by SeaRayz RSS
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Mar 8, 2014 11:30 PM

What on Earth is this?!

I had to relocate an old rotting wooden stump in my garden and I found this thing sat on top of it.

I have never seen anything like this before and I'm usually quite good at identifying this sort of thing.

At first glance I thought it was a Woodlouse but it appears to be something a bit more like a slug.

Top down view of the critter.


Here's a better look at it's "head" with eye stalk/breathing tubes/mouthparts?


These images were taken at a 20x magnification. I took some 400x pictures but they're a bit too close.

The subject is about 1cm long and very slow moving,

I've been studying it for a period of just over 24 hours and I've noticed that

it doesn't seem to react in any way to light moisture or changes in temperature.

Underside shots with the "head" now on the left.



I'm not sure what the green bit is inside but when I looked at its back with 400x mag, toward its "tail"end

I could see tiny, regularly spaced growths of the same colour, they looked very sharp, possibly some kind of defense maybe?


I have the creature contained in a small habitat consisting of the immediate environment

that I found it in but I plan to release it tomorrow afternoon.

If anyone has any information at all it'd be much appreciated.

  • Currently Being Moderated
    Mar 9, 2014 1:33 AM (in response to Mr.Coppertop)
    Re: What on Earth is this?!

    Hi Coppertop,

    I think you'll find this is a (hibernating) hoverfly larva, which one for sure I couldn't say, but they are quite nice to have in the garden as at this stage they are predators of aphids and such.  Hope this helps a bit, sorry I can't tell you more, I'm sure someone will be  round that knows more.



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