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Photo#1124522
Shore Flies Genus Ochthera mantis complex - Ochthera

Shore Flies Genus Ochthera mantis complex - Ochthera
Bath, Lennox and Addington, Ontario, Canada
August 8, 2015
Size: 4-5 mm
Is this Ochthera tuberculata?. My backyard has small wetland with a creek running thru it, and this flies were very common along the wateredge. Their display of their front legs to expose a white spot reminded me on Fiddler crabs. They seem to hop away rather than fly.

Images of this individual: tag all
Shore Flies Genus Ochthera mantis complex - Ochthera Shore Flies Genus Ochthera mantis complex - Ochthera Shore Flies Genus Ochthera mantis complex - Ochthera Shore Flies Genus Ochthera mantis complex - Ochthera Shore Flies Genus Ochthera mantis complex - Ochthera

Probably tuberculata
Probably Ochthera tuberculata, if the fore tarsi really are pale and not black and overexposed.

 
Probably tuberculata
I caught one of the flies today and confirmed with a hand lens the fore tarsi is black. I exchanged some of the photos for clearer pics.

 
mantis complex
O. mantis complex. They are hard to identify to species. This one was identifiable because there are only two likely species in Pennsylvania and the shape of the fifth sternite was visible:

Moved

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