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Picture-winged Fly

Idana marginata


Idana marginata, the Picture-winged Fly is a very distinctive member of the Ulidiidae family. This fly has red eyes, vertically striped markings on the thorax, and horizontally striped markings on the abdomen. I don't think the point that the abdomen tapers over to is an ovipositor, I think it is supposed to mimic a stinger. As you can see in the upper right hand corner of the first photo, this fly emitted a liquid as I was handling it, perhaps a defensive mechanism.


Lifer! These awesome flies are in pretty huge numbers!

No species ID suggestions


Jacob Gorneau
Jacob Gorneau 5 years ago

Thank you so much, Cindy! This fly was quite unique!

Nice one, J!

New York, USA

Lat: 42.35, Long: -74.02

Spotted on Jun 9, 2013
Submitted on Jun 16, 2013

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