Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
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#30415
Robber fly - Efferia aestuans - female
Copyright © 2005 Lynette Elliott

Robber fly - Efferia aestuans - Female
Lake Crabtree Co. Park, Wake County, North Carolina, USA
August 13, 2005
tag · login or register to post comments
Contributed by Lynette Elliott on 4 September, 2005 - 6:59am
Last updated 13 March, 2010 - 12:12pm

Nerax
Nerax [Efferia] aestuans. Again, the most likely robber to land on people. Most robbers seem to take slow flying damsels when given proximity. Not sure that is I. posita in its mouth though. Maybe I. hastatum?
… Herschel Raney, 5 September, 2005 - 8:29am login or register to post comments

Is it eating a male Ischnura
Is it eating a male Ischnura posita? Outstanding image!
… john and jane balaban, 4 September, 2005 - 10:51am login or register to post comments

 
I don't know
I only got this one shot and then it flew around and landed on my backpack. I think Patrick got some shots of it there, but I don't know if it still had the prey.
… Lynette Elliott, 4 September, 2005 - 2:42pm login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2023 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact