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

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

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

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


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#27902
Robber Fly - Efferia aestuans - male
Copyright © 2005 tom murray

Robber Fly - Efferia aestuans - Male
Randolph, Norfolk County, Massachusetts, USA
August 10, 2005
Is this an Efferia aestuans?
tag · login or register to post comments
Contributed by tom murray on 11 August, 2005 - 8:20pm
Last updated 8 August, 2006 - 6:21am

Nerax Efferia
Appears to have the right abdomen and terminalia. The legs are very dark. But it does not look like apicalis, the only other real possibility.
… Herschel Raney, 15 August, 2005 - 8:17pm login or register to post comments

 
Placement
Should I place this in the Efferia guide page, or make a new page under Nerax. Thanks Herschel.
… tom murray, 15 August, 2005 - 9:39pm login or register to post comments

 
Nerax
It would be easier to sort the Efferia if they were broken down so it might be best to have a large Efferia section with a comment about the subdivisions and then subsections for the others beneath that.
… Herschel Raney, 18 August, 2005 - 3:57pm 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 © 2003-2024 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