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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Horntail Wasps (Siricidae)
Photo#1723995
Giant Horntail - male
Copyright © 2019 Randy Gage

Giant Horntail - Male
Near Estes Park, CO, Grande County, Colorado, USA
September 1, 2019
Size: 26mm
Elevation: 12,466"
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Contributed by Randy Gage on 8 September, 2019 - 1:49am
Last updated 8 September, 2019 - 10:54am

Moved
Moved from ID Request.
… Bob Biagi, 8 September, 2019 - 10:54am login or register to post comments

Male
No ovipositor = ♂
Fully developed wings = Adult
If you still have this specimen, please try to re-image the hind legs. This will help the experts to decide between the Giant Woodwasp, Urocerus gigas flavicornis and other closely related species.

There is more updated information on Wikipedia, which says that this North American sub-species is now considered to be a separate species, Urocerus flavicornis. BOLD has images of 5 specimens, but they are all females.
… Bob Biagi, 8 September, 2019 - 10:43am login or register to post comments

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