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 giganteus
Photo#87416
Big Robber - Promachus giganteus
Copyright © 2006 Bob Beatson

Big Robber - Promachus giganteus
Huachuca Mts., Cochise County, Arizona, USA
November 14, 2006
Size: ~20mm
Largest robber I think I've seen. Can anyone ID from this somewhat dark image?

Images of this individual: tag all
Big Robber - Promachus giganteus Big Robber - Promachus giganteus
tag · login or register to post comments
Contributed by Bob Beatson on 17 November, 2006 - 3:14pm
Last updated 21 November, 2009 - 5:09pm

Moved
Moved from Giant Robber Flies.
… norman and cheryl lavers, 21 November, 2009 - 5:09pm login or register to post comments

You're not mistaken
about the size. This is Promachus giganteus, black, hairy, and huge.
… norman and cheryl lavers, 21 November, 2009 - 5:08pm login or register to post comments

Moved
Moved from Robber Flies.
… Herschel Raney, 16 February, 2007 - 4:29pm login or register to post comments

Moved
Moved from Flies.
… john and jane balaban, 28 January, 2007 - 6:00pm login or register to post comments

Promachus sp. (truquii perhaps)
This appears to be a Promachus female. It seems Arizona has a lot of Promachus diversity, however. These have occurred in AZ or nearby: albifacies, atrox, dimidiatus, giganteus, magnus, minusculus, nigrialbus, sackeni, and truquii. The description of truquii seems to match this specimen - also truquii has been collected from the Huachuca Mountains in AZ and other locations in Mexico. Maybe someone else can help eliminate the other possibilities.
… Steve Collins, 20 November, 2006 - 4:37pm login or register to post comments

 
Thanks Steve -
maybe someone will get it to species, but I am glad to know the genus and about the diversity of Promachus in AZ.
… Bob Beatson, 20 November, 2006 - 5:47pm 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