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) » Stenopogoninae » Stenopogon » Stenopogon rufibarbis
Photo#257216
Stenopogon rufibarbis female - Stenopogon rufibarbis - female
Copyright © 2009 Lynn Monroe

Stenopogon rufibarbis female - Stenopogon rufibarbis - Female
Anza-Borrego Desert State Park, San Diego County, California, USA
May 22, 1997
Size: large
This large robber fly, probably a Stenopogon, was photographed preying on an uncommon False Click Beetle (Eucnemidae), Perothops witticki, in Upper Oriflamme Canyon, elevation about 4000 ft. in late May. The robber fly is very similar to S. californiae, # 202267, in body shape, wing length, long hairs fringing thorax, beard, etc. but the color is quite different. Any help with identifying this regal robber fly will be much appreciated.
tag · login or register to post comments
Contributed by Lynn Monroe on 8 March, 2009 - 12:52pm
Last updated 15 April, 2009 - 8:15pm

Moved
Moved from Robber Flies.
… Keith Bayless, 15 April, 2009 - 8:15pm login or register to post comments

the prey looks like an eucnemid...
...but can't help with the predator, sorry
… v belov, 8 March, 2009 - 1:11pm login or register to post comments

 
Eucnemid prey
I'm happy to have you agree about the prey. We saw and photographed a Eucnemid on the same day and the about the same place as we took this robber fly photo. This prey really looks like the live beetle in many details, but some details are impossible to tell. Thanks!
… Lynn Monroe, 8 March, 2009 - 3:02pm login or register to post comments

 
prey
Hi,
I agree with the prey item genus, but the species is a trickier one. Most high altitude Perothops I have seen are P. cervinus, most of the P. witticki coming from lowland localities. These are hard to identify from an image, however, and it really does not matter that much.
s.
Jyrki Muona
… Muona, 9 March, 2009 - 2:23am login or register to post comments

 
Prey Perothops witticki
It would be impossible to ID the Perothops from this picture of the prey. I will post the two photos that were used to ID P. witticki and the basis on which I identified it to species.
… Lynn Monroe, 9 March, 2009 - 11:21am login or register to post comments

 
Robber fly is
Stenopogon rufibarbis (looks to be a female), a widespread W. U.S. species.
… Eric Fisher, 12 March, 2009 - 6:47am login or register to post comments

 
Stenopogon rufibarbis female
I am delighted to have this large and handsome robber fly identified to species! Thank you so much. We have seen this species in different locales in The Park, so it is fairly common here.
… Lynn Monroe, 12 March, 2009 - 5:33pm 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