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Photo#350715
Jewelweed sawfly larva - Aglaostigma semiluteum

Jewelweed sawfly larva - Aglaostigma semiluteum
Valley Ridge, South Burlington, Chittenden County, Vermont, USA
August 11, 2005
Found feeding on jewelweed (Impatiens).

Images of this individual: tag all
Jewelweed sawfly larva - Aglaostigma semiluteum Jewelweed sawfly larva - Aglaostigma semiluteum

Moved
Moved from Tenthredininae.

Cool-- 15 years later I still have only encountered this once, but there's plenty of Impatiens around my house and I'll keep an eye out this summer for larvae to rear.

 
Nice!
It will be cool to see if you get anything.

We've got Impatiens capensis right outside the lab, I've been walking past it for years now but have only ever seen leaf mines on it. Then again, I was only clued in that Aglaostigma eats it after a post on Twitter the other day, and only found my way here through a link on iNaturalist this morning. Serendipity!

Aglaostigma, probably
Aglaostigma is the only thing known from Impatiens. But, see comments here.

Moved

I can’t count the annulets,
I can’t count the annulets, but it’s probably the same
https://bugguide.net/node/view/654727/bgimage
https://bugguide.net/node/view/548604/bgimage

Jewelweed sawfly larva
I saw what looked like this larva today on jewelweed in Falmouth, MA. I'll try to find it and rear it out.

 
Good luck!
This is the only one I've ever seen, but apparently now is the time to look for them, since I took this picture six years ago to the day!

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