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Cimbex connatus - Spinning a cocoon After finding the larva on Elm, taking it home to identify it (I didn't know of any Cimbex living on Elm) and finding that I should offer it Alnus for further feeding, it pretty much went ahead and started spinning a cocoon in the Alnus leafs the next day.<br />
Original larva here:<br />
<figure class="photo"><a href="https://www.jungledragon.com/image/102324/cimbex_connatus_-_larva.html" title="Cimbex connatus - Larva"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/102324_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1759968010&Signature=enLwqXT%2FlVhvxe6PatGtg%2FxL2Pw%3D" width="200" height="114" alt="Cimbex connatus - Larva Nice phat larva of one of our largest Sawflies. Found it on a small Elm (Ulmus) actually, but it must have fallen out of the Alder tree (Alnus) above it.<br />
A day after finding and feeding it with leafs from the proper tree (Alnus) it started spinnig a cocoon:<br />
https://www.jungledragon.com/image/102547/cimbex_connatus_-_spinning_a_cocoon.html<br />
Took about a day to finish it:<br />
https://www.jungledragon.com/image/102548/cimbex_connatus_-_finished_cocoon.html<br />
Cimbex,Cimbex connatus,Cimbicidae,Geotagged,Larva,Netherlands,Symphyta,nl: Elzenknotssprietbladwesp,sawfly larva" /></a></figure><br />
Finished cocoon here:<br />
<figure class="photo"><a href="https://www.jungledragon.com/image/102548/cimbex_connatus_-_finished_cocoon.html" title="Cimbex connatus - Finished cocoon"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/102548_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1759968010&Signature=FFHKIc7QiP7WvA4Z5x2SY6jZarw%3D" width="200" height="114" alt="Cimbex connatus - Finished cocoon Cocoon spun by the larva previously documented in these images:<br />
https://www.jungledragon.com/image/102324/cimbex_connatus_-_larva.html<br />
https://www.jungledragon.com/image/102547/cimbex_connatus_-_spinning_a_cocoon.html Cimbex,Cimbex connatus,Cimbicidae,Cocoon,Geotagged,Large Alder Sawfly,Larva,Netherlands,Symphyta,nl: Elzenknotssprietbladwesp,sawfly larva" /></a></figure> Cimbex,Cimbex connatus,Cimbicidae,Cocoon,Geotagged,Large Alder Sawfly,Larva,Netherlands,Symphyta,nl: Elzenknotssprietbladwesp,sawfly larva

Cimbex connatus - Spinning a cocoon

After finding the larva on Elm, taking it home to identify it (I didn't know of any Cimbex living on Elm) and finding that I should offer it Alnus for further feeding, it pretty much went ahead and started spinning a cocoon in the Alnus leafs the next day.
Original larva here:

Cimbex connatus - Larva Nice phat larva of one of our largest Sawflies. Found it on a small Elm (Ulmus) actually, but it must have fallen out of the Alder tree (Alnus) above it.<br />
A day after finding and feeding it with leafs from the proper tree (Alnus) it started spinnig a cocoon:<br />
https://www.jungledragon.com/image/102547/cimbex_connatus_-_spinning_a_cocoon.html<br />
Took about a day to finish it:<br />
https://www.jungledragon.com/image/102548/cimbex_connatus_-_finished_cocoon.html<br />
Cimbex,Cimbex connatus,Cimbicidae,Geotagged,Larva,Netherlands,Symphyta,nl: Elzenknotssprietbladwesp,sawfly larva

Finished cocoon here:

Cimbex connatus - Finished cocoon Cocoon spun by the larva previously documented in these images:<br />
https://www.jungledragon.com/image/102324/cimbex_connatus_-_larva.html<br />
https://www.jungledragon.com/image/102547/cimbex_connatus_-_spinning_a_cocoon.html Cimbex,Cimbex connatus,Cimbicidae,Cocoon,Geotagged,Large Alder Sawfly,Larva,Netherlands,Symphyta,nl: Elzenknotssprietbladwesp,sawfly larva

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The Large Alder Sawfly

Cimbex connatus is a large sawfly in the family Cimbicidae living on Alnus spp. in Europe.

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Similar species: Wasps, Bees, Sawflies And Ants

Species identified by Pudding4brains

By Pudding4brains

Public Domain

Uploaded Oct 4, 2020.

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