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Photo#185809
Sawfly - Pristiphora appendiculata

Sawfly - Pristiphora appendiculata
Brighton, Northumberland, Ontario, Canada
May 8, 2008
Size: 1/2 inch+
Found this caterpillar on a gooseberry bush in early May. The second image is the cocoon formed, at this point I could still see the caterpillar inside moving back and forth. The cocoon eventually turned brown. The third image is of the sawfly, approximately 1/4 inch. The entire transformation from first finding the caterpillar to sawfly took approximately 20 days. Is it possible to ID this sawfly?

Images of this individual: tag all
Sawfly - Pristiphora appendiculata Sawfly - Pristiphora appendiculata Sawfly - Pristiphora appendiculata

Moved
Moved from Nematinae.

probably Pristiphora appendiculata
appearance + host
(not P. pallidiventris who has bright white stripes on the back)

Moved
Moved from Common Sawflies.

Moved

Please correct the dates
I think it will be of interest to see the time progression but currently all three images are dated May 14.

BTW If you put the date in the title (in addition to the date field), it's visible when you run the cursor over in thumbnail view, which can be a handy feature in this kind of series. See here for an example.

Image
Found this one that looks like yours
http://www.pbase.com/mikemeany/image/70363067
Your larva looks different from Nematus ribesii, the gooseberry sawfly, but maybe it changes as it matures.
http://en.wikipedia.org/wiki/Nematus_ribesii

 
Sawfly
Thanks John. I think the adults pictured on the web look very different from mine. But the caterpillar looks almost the same.
Naomi

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