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Myzinum (Thynnid Wasp) - Myzinum obscurum - female

Myzinum (Thynnid Wasp) - Myzinum obscurum - Female
Jefferson Township, Montgomery County, Ohio, USA
August 29, 2015
Size: 15-16 mm
While I was taking the photos, I thought this was a wasp, as there were numerous recognizable wasps feeding on the Boneset (Eupatorium perfoliatum). However, on inspecting the pictures, I think it may be a sawfly, but since I know nothing about them, any help identifying it would be greatly appreciated. The size was smaller than Polistes fuscatus, which was also feeding, but I'm not certain as to exact size.

Images of this individual: tag all
Myzinum (Thynnid Wasp) - Myzinum obscurum - female Myzinum (Thynnid Wasp) - Myzinum obscurum - female


Moved from ID Request.

You're the best!
Thank you so much for the help! It _was_ a wasp. Apparently in my hours of searching I just never ended up on the right guide page.

Very excellent to see that we may have even fewer May and June (scarab) beetles here next year, too! :)

If you have time, could you tell me if I'm correct in the assumption from the range info given in the guide that this is a native species? Thank you again for your help. You made my day!

This is one of two very similar species, both of which are native. The Info Page will usually note if a species is introduced. However, I also checked this article, just to be safe.

Thank you again!
Really appreciate you taking the time, Ken. :) Have been learning more about native plants and accompanying insects recently. Didn't even realize there was a non-native species list on the guide. Thanks for sharing!

(And thanks to Beatriz Moisset, if you happen to read this, for compiling and maintaing that list.)

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