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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Orthorrhapha » Asiloidea » Robber Flies (Asilidae) » Asilinae » Efferia » Staminea group (Efferia Staminea group) » Efferia varipes
Photo#1536367
Promachus? - Efferia varipes - male
Copyright © 2018 Steven Mlodinow

Promachus? - Efferia varipes - Male
JE Canyon Ranch, Las Animas County, Colorado, USA
June 9, 2018
Eating what appears to be Cuerna striata or some similar species. If so, robberfly would be at least 2.5 cm long. In swale with pools, surrounded by strip of grassy vegetation and then juniper woodlands.

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Promachus? - Efferia varipes - male Promachus? - Efferia varipes - male
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Contributed by Steven Mlodinow on 13 June, 2018 - 5:45pm
Last updated 25 May, 2021 - 9:20am

Moved
Moved from Efferia.
… Ken Wolgemuth, 16 June, 2018 - 4:54pm login or register to post comments

Efferia varipes, male.
One of few Efferia with red-topped legs. New for BugGuide (in Staminea Group).
… Eric Fisher, 16 June, 2018 - 4:47pm login or register to post comments

Moved
Moved from Robber Flies.
… Ken Wolgemuth, 14 June, 2018 - 8:35am login or register to post comments

Big
Beautiful male Efferia species. Size and coloration in CO might help with a shorter list there.
… Herschel Raney, 14 June, 2018 - 8:22am login or register to post comments

Moved
Moved from ID Request.
… Ken Wolgemuth, 13 June, 2018 - 10:18pm login or register to post comments

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