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 » Giant Robber Flies (Promachus) » Promachus nigrialbus
Photo#146812
Robberfly - Promachus nigrialbus
Copyright © 2007 Tom Bentley

Robberfly - Promachus nigrialbus
Saguaro National Park, Pima County, Arizona, USA
September 16, 2007
tag · login or register to post comments
Contributed by Tom Bentley on 19 September, 2007 - 11:08pm
Last updated 8 January, 2012 - 7:07pm

Moved
Moved from possibly albifacies [temporary page].
… Tom Bentley, 8 January, 2012 - 7:07pm login or register to post comments

Moved
Moved from Giant Robber Flies.
… v belov, 28 November, 2010 - 1:39pm login or register to post comments

Moved
Moved from Robber Flies.
… Tom Bentley, 20 September, 2007 - 11:58am login or register to post comments

Appears
To be a Promachus female. But can't see facial features. Possibly P. albifacies.
… Herschel Raney, 20 September, 2007 - 11:51am login or register to post comments

 
ID
Promachus nigrialbus - very common in Arizona and New Mexico. Ovipositor begins with segment 7 - easy differentiation from giganteus. Wings are proportionally shorter than those of the latter.
… David M Williams, 8 January, 2012 - 6:33pm login or register to post comments

 
Thanks Herschel. This is the
Thanks Herschel. This is the only good photo I have...all others would not help.
… Tom Bentley, 20 September, 2007 - 11:58am 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