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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Flies (Diptera) » "Orthorrhapha" (Brachycera excluding Aschiza and Schizophora) » Asiloidea » Robber Flies (Asilidae) » Asilinae » Giant Robber Flies (Promachus)
Photo#87416
Big Robber - Promachus
Copyright © 2006 Bob Beatson

Big Robber - Promachus
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?

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Big Robber - Promachus Big Robber - Promachus
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Contributed by Bob Beatson on 17 November, 2006 - 3:14pm
Last updated 16 February, 2007 - 4:29pm

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

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