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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Orthorrhapha » Asiloidea » Robber Flies (Asilidae) » Asilinae » Efferia » Nerax group (Efferia Nerax group) » Efferia aestuans
Photo#1869577
White-banded fly - Efferia aestuans - male
Copyright © 2020 John F. Carr

White-banded fly - Efferia aestuans - Male
Lincoln, Middlesex County, Massachusetts, USA
August 3, 2020
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Contributed by John F. Carr on 4 August, 2020 - 12:12pm
Last updated 5 August, 2020 - 6:29pm

Moved
Moved from Robber Flies.
… Chris Cohen, 5 August, 2020 - 6:29pm login or register to post comments

Looks like...
There might be some dark hairs on the mystax and red on the tibea, but we can't see the long hairs on the ventral side of the abdomen in this view.
The wing veins seem to match the sub-genus Nerax group. (vein near wing apex pointing inward)
Efferia aestuans: ♂ The silvery portion on the abdomen doesn't seem to match, but it matches other examples of that species. What do you think?
… Bob Biagi, 5 August, 2020 - 12:55pm login or register to post comments

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