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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) » Siricinae » Urocerus » Yellow-horned Horntail Wasp (Urocerus flavicornis)
Photo#317524
Observed in Jasper Alberta - Urocerus flavicornis
Copyright © 2009 plebel

Observed in Jasper Alberta - Urocerus flavicornis
Alberta, Canada
August 7, 2009
Size: 3.5 cm approximately
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Contributed by plebel on 9 August, 2009 - 10:52am
Last updated 8 July, 2012 - 6:48pm

Moved
Moved from Giant Woodwasp.
… Ken Wolgemuth, 8 July, 2012 - 6:48pm login or register to post comments

Moved
Moved from ID Request.
… Eric R. Eaton, 10 August, 2009 - 1:25pm login or register to post comments

Nice.
Female horntail woodwasp, Urocerus gigas. Those appendages are not stingers. The long one is her egg-laying organ called an "ovipositor." Near as I can tell the short one is a drill used also to deposit a fungus that helps soften the wood for the larvae to bore into it.
… Eric R. Eaton, 9 August, 2009 - 11:52am login or register to post comments

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