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Photo#1492366
Argidae, pupa on Desmodium - Atomacera debilis

Argidae, pupa on Desmodium - Atomacera debilis
Talmage Hill WA, Union County, Iowa, USA
July 11, 2015
Size: 3.8 mm
Yes, this is this sawfly pupa. Sawfly pupae that I've seen are usually wrapped in a wiry cocoon.
Found on a Desmoidum leaf in this rearing:

where the other pupae were in wiry cocoons.

Images of this individual: tag all
Argidae, pupa on Desmodium - Atomacera debilis Argidae, pupaX on Desmodium - Atomacera debilis

Moved
Moved from ID Request.

Seems to be...
There's a photo of an argid sawfly pupa in the introduction of my leafminer book, and it's pretty similar to this.

 
Thanks Charley,
You know your book better than I do.
I 'assumed' but didn't want to assume.