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Agromyzidae Fly - Ophiomyia kwansonis

Agromyzidae Fly - Ophiomyia kwansonis
Kennebunk, York County, Maine, USA
July 4, 2006
Size: 3mm long
Tiny fly,3mm long; seen several, always on Day Lily petal. ID by BugGuide as Leaf Miner Fly, Agromyzidae

Moved from Ophiomyia.
This fly was identified by the Florida Dept. of Agriculture and the University of Maryland as O. kwansonis, a pest from Japan. It is perhaps the earliest record in the US, and we didn't even know it!

Moved from Leaf Miner Flies.

Nice shot, and an interesting record!
The only agromyzids known to be associated with the Day Lily (if this is its host)are Ophiomyia kwansonis and Liriomyza hemerocallis, both of which are restricted to Japan, so this is a new host record for whatever species this is.
The genus is either Melanagromyza (which is usally metallic green) or, more likely, Ophiomyia.

Moved from Flies.

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