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Oso Flaco Lake, San Luis Obispo County, California, USA
September 5, 2016
Size: ~4mm
Found on arroyo willow (Salix lasiolepis) in coastal riparian habitat

Moved from ID Request.


Willow feeders
include Agromyza spp. and Euhexomyza spp. This doesn't look like one I'm familiar with, but I was guessing Agromyzinae too.

I'd agree with Charley, but hard to tell. The head is even Japannagromyza-ish. I'd love to see specimens if available.

I only have dorsal shots of this one, but they were fairly common so I could try to take additional photos (would other angles help?). They were not at a location where I can collect. The full size image is visible on

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