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fly/wasp - Ocyptamus - female

fly/wasp - Ocyptamus - Female
New Port Richey, Pasco County, Florida, USA
June 23, 2014
Size: 8mm
I thought this was a hover fly and was laying an egg. Now it looks to be attacking the aphid like a parasitic wasp. Can you help?

Moved from Syrphid Flies.

Moved from "Aschiza".

Moved from Flies.

Moved from ID Request.

Larvae of many species of subfamily Syrphinae are predatory on aphids and similar soft bodied insects. These lay eggs on plants where prey are present.

Quick response, I was about to add that it is a sunflower. Am I understanding that some will do either and/or?

and/or what?
I'm not sure what the alternatives you mean for "and/or". None of these lay eggs in prey like predatory wasps. This one is laying eggs near prey.

Sorry about the confusion, yo
Sorry about the confusion, you answered the question definitively. Thank you

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