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Black and yellow wasp - Macrophya formosa

Black and yellow wasp - Macrophya formosa
Fort Bragg, Cumberland County, North Carolina, USA
June 6, 2006
Size: around 15 mm
Sorry, I'm back to dial up and can't browse the site well. I'm hoping someone knows what it is. It was chowing down on the aphids who are chowing on the Canadian lettuce. I think it ate 3 aphids in about 2 minutes.

Moved from Tenthredininae.

Macrophya formosa (Klug)
Macrophya formosa (Klug)

Moved from Tenthredo.

Tenthredinidae: Tenthredo sp. maybe
Don't know the genera of tenthredinids, but one of the physically largest and most strongly marked in color pattern (like your specimen) is the genus Tenthredo, which I seem to recall are also predators as adults.

Macrophya, more likely

I agree.
Mostly, I just wanted to congratulate you on a fantastic shot of a seldom-observed behavior! Way to go:-)

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