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For Insects, Spiders & Their Kin
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Photo#632322
White-shouldered beach fly  - Thambemyia borealis

White-shouldered beach fly - Thambemyia borealis
Santa Ana River Mouth, Huntington Beach, Orange County, California, USA
April 20, 2012
This white-shouldered, white-mouthed fly was found on the beach on and around washed-ashore giant kelp, one of around 5 or more fly species present. Long-legged, but was not scared of my flash like other long-legged flies, and matches no long-legged flies in the guide so perhaps a different family. Looks distinct enough to ID.

Moved
Moved from Hydrophorinae.

This is a Japanese species that stowed away on boats.

Moved
Moved from Longlegged Flies.

Moved
Moved from Flies.

Moved
Moved from ID Request.

Hydrophorinae?
My guess is Hydrophorinae.