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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Cimbicid Sawflies (Cimbicidae) » Cimbex » Elm Sawfly (Cimbex americanus) » Larvae (Cimbex americanus Larvae)
Photo#46084
Pink Larva on Willow - Cimbex americanus
Copyright © 2006 kirkk

Pink Larva on Willow - Cimbex americanus
north woods, Wisconsin, USA
July 13, 2005
found on willow in midsummer in northern Wisconsin. Critter is pink with a black line down the back. Stretched out its about 2 inches long.
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Contributed by kirkk on 28 March, 2006 - 4:31pm
Last updated 10 November, 2009 - 8:05am

Moved
Moved from Elm sawfly.
… v belov, 10 November, 2009 - 8:05am login or register to post comments

Looks like a sawfly larva
with all the prolegs and the black eyespot. Knowing it was on willow should help a lot. More images in the guide here
… john and jane balaban, 28 March, 2006 - 6:36pm login or register to post comments

 
Sawfly larva
Yes. It looks like Cimbex sp. is there only one, C. americana? It seems some photos have the black stripe alone and others have black stripes heading down the sides. Thanks.
… kirkk, 5 April, 2006 - 5:42pm login or register to post comments

 
How big do sawflies get?
To me, two inches seems huge, but I'm a bit ignorant about them.
… Jim McClarin, 5 April, 2006 - 8:50pm login or register to post comments

 
pink larva
It really was that large. I have a hard time reconciling this large larva with a typical sawfly. I'm still waiting for a sawfly expert to weight in.
… kirkk, 30 April, 2006 - 12:52pm login or register to post comments

 
Okay, plan B:
On the chance it's a lepidopteran larva, I've asked Janice Stiefel to have a look at it since she's reared a lot of larvae from that region.
… Jim McClarin, 30 April, 2006 - 5:07pm login or register to post comments

 
Elm Sawfly
I don't claim to be an expert on sawflies, but this one I have photographed both adult and larva. I found the larva eating Willow (Salix), overwintered it in a jar in the fruit cellar with 4 in. of soil (where it buried itself) and adult eclosed in Spring. I have several other sawfly larvae that I can't ID, however.
… Janice Stiefel, 30 April, 2006 - 5:21pm login or register to post comments

 
Sawfly larva
Thanks Janice. Sawfly it is. Genus? Kathy
… kirkk, 21 June, 2006 - 11:16am login or register to post comments

Nice image!
And welcome to bugguide. I'm sure an expert will be along shortly :-)
… Jim McClarin, 28 March, 2006 - 6:25pm login or register to post comments

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