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Unknown tiny flying insect - Psychoda

Unknown tiny flying insect - Psychoda
North Charleston, Charleston County, South Carolina, USA
April 18, 2010
Size: ~2mm
Looking for input on this thing. I've been noticing an unpleasant odor in my bathroom that's gradually been getting worse over the past couple of weeks. Then I started finding these things in my bathtub. Trying to figure out what they are and if they are the cause of the odor or if they are a symptom of the cause of the odor.

At first I thought they were fruit flies, but once I got my camera on them I knew they weren't. Any help would be appreciated.

Moved from Moth Flies.

Moved from ID Request.

Moth Fly
Of course, right after I post this, I find moth flies in the guide. :P

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