Help please

[I Macaulay]

I have a tree full of these tiny bugs abt 4mm in length.

Can someone please tell me what they are.

Senility has been a smooth transition for me.

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Ian Macaulay   Carp, Ontario

Open at 11:AM   Close at 5:00 PM

45.2397 N long: 76.0991 W Elv 137 M UTM
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[Bev Wigney]

They are some species of Sawflies.   Although they look like caterpillars of some sort, Sawfly larvae just have 3 pairs of legs at the front end.  Often, if they are along a leaf edge, the whole batch of them with twitch and thrash their abdomens around in synch -- a coordinated action to scare away predators.  The species of Sawfly can often be identified based on what plant they are devouring.

bev

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[I Macaulay]

Thank you,  Now I will have to try and find out the make of the tree that no longer has any leaves.

It Should be easy, its a common tree.   

Senility has been a smooth transition for me.

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Ian Macaulay   Carp, Ontario

Open at 11:AM   Close at 5:00 PM

45.2397 N long: 76.0991 W Elv 137 M UTM
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[Owen Clarkin]

Looks like this to me:

https://en.wikipedia.org/wiki/Viburnum_leaf_beetle

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[Bev Wigney]

Having seen the page about the Viburnum Leaf Beetle posted by Owen, yes, it does look like that could be the larvae.  While it does look like a typical Sawfly (conspicuous pairs of legs and often a dark head capsule), beetle larvae can also look similar.  Sounds like these are a fairly recent invasive insect (yes, another one - just what we need).

bev

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[I Macaulay]

Confirmed,  The virburnum leaf beetle is the culprit,  The tree is a snowball but as is now leafless It would be hard to tell.  Thank you Bev and Owen. 

I think the tree is toast,  That is a scientific term for Not Vi, Burned Um.  

Ian

Senility has been a smooth transition for me.

Note New Hours

Ian Macaulay   Carp, Ontario

Open at 11:AM   Close at 5:00 PM

45.2397 N long: 76.0991 W Elv 137 M UTM
    Don't Forget to Save the Stamps

To view this discussion on the web visit https://groups.google.com/d/msgid/naturelist/CAD_MH0NEKfXpAKs1TvtDkqJRQ-MdshHOEmPTYmUM%2BNU3bEZKjA%40mail.gmail.com.