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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Orthorrhapha » Empidoidea » Longlegged Flies (Dolichopodidae) » Dolichopodinae » Tachytrechus » Tachytrechus auratus
Photo#1284599
tiny fly - Tachytrechus auratus - male
Copyright © 2016 Dale and Elva Paulson

tiny fly - Tachytrechus auratus - Male
Soda Springs trailhead, Umpqua National Forest, Douglas County, Oregon, USA
August 29, 2016
Size: 5-7mm
I can't find any flies in Bug Guide with long antenna like this. The tiny fly was present on very shallow moving water. The big flume at this location has been leaking a steady stream of water about one foot wide and one inch deep. I also photographed what I think is a marsh fly at this location, which I'll submit in a few minutes.

Images of this individual: tag all
tiny fly - Tachytrechus auratus - male tiny fly - Tachytrechus auratus - male
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Contributed by Dale and Elva Paulson on 30 August, 2016 - 11:32pm
Last updated 31 August, 2016 - 8:29am

Moved
Moved from Tachytrechus.
… John F. Carr, 31 August, 2016 - 8:29am login or register to post comments

Antennae
The antennae may be species-specific, a "male secondary sexual character". I will need to do some reading. Females have plain antennae.
… John F. Carr, 31 August, 2016 - 6:10am login or register to post comments

Moved
Moved from ID Request.
… John F. Carr, 31 August, 2016 - 6:09am login or register to post comments

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