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Photo#1858808
sawfly - Cladius difformis - female

sawfly - Cladius difformis - Female
Lacey, Thurston County, Washington, USA
July 16, 2020
I'm confused. My rose bush is being decimated (see leaf damage on later pic). I find a couple tiny green moth caterpillars on one of the leave, so I figure I'll raise the larva and see what kind of moth. Simple enough, right? I raise the two moths only to have one hatch and it's some sort of ?wasp? OK, I tell myself. One of the caterpillars had a parasitic wasp in it. A couple days latter...another copy of the parasitic wasp! I take a closer looks at the cocoons--they're in tact, with a way out, and there's no lifeless larva husk that the parasitic wasp aliened out of. Are there hymenoptera with caterpillar looking larvae?

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Moved
The larva really matches Cladius difformis.
In my opinion, the imago also corresponds. (Female). However, identifying an imago requires a lot of photographs of different body parts.

Moved from Common Sawflies.

further ID
Did some researcho online. A number of sources only list 3 common sawflies on rose plants. Of the three, only Bristly Roseslugs have larvae that resemble the ones in this series. In fact, a number of sources online also say that one of the characteristics of being a sawfly is an absence of hair or bristles (Bristly Roseslugs not included, of course). So, my guess at this point is Cladius difformis although I'm happy to wait for more expert confirmation.

Moved
Moved from ID Request.

Sawfly larvae look like caterpillars and feed on plants.

 
thanks
Thanks for your quick ID. Finished before I could even finish posting the pics!! I tried to pick out representative pics from all the pics I took over the last few weeks, but it turned out to be more than I thought. I'd like to leave a few larvae, a few pupae, etc. to show the progression, but can you recommend which photos aren't necessary for the series? Thanks again.

 
Let's leave them all for now.
I'm no expert, so I wouldn't presume to say which pics should be discarded.