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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Apoidea sans Anthophila – Apoid Wasps » Square-headed Wasps, Sand Wasps, and Allies (Crabronidae) » Square-headed Wasps (Crabroninae) » Trypoxylini » Trypoxylon » Subgenus Trypargilum (Trypoxylon Subgenus Trypargilum) » Organ Pipe Mud-dauber Wasp (Trypoxylon politum)
Photo#1119742
please explain - Trypoxylon politum
Copyright © 2015 michelle

please explain - Trypoxylon politum
Morgantown , Monongalia County County, West Virginia, USA
August 11, 2015
Size: 3 to 4 inches
These were built last year. We did not see any changes until this summer. Then we noticed the holes one at a time over about two weeks. Did something take over the mud tube? Was the architect a mud dauber?
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Contributed by michelle on 11 August, 2015 - 6:12pm
Last updated 7 October, 2015 - 3:47pm

Moved
Moved from ID Request.

Yes, pipe organ mud dauber. These are wasp exit holes, and I see no evidence that another type of wasp added onto the nests. I assume that pupae overwinter in the nests before the adults chew their way out in the spring (or apparently summer, in this case).
… Charley Eiseman, 7 October, 2015 - 3:47pm login or register to post comments

Perhaps this was made by a Pipe Organ Mud Dauber
… Even Dankowicz, 11 August, 2015 - 6:20pm login or register to post comments

 
But it was made last summer.
But it was made last summer. Does it take that long to hatch?
… michelle, 11 August, 2015 - 8:21pm login or register to post comments

 
Mud dauber nests don't quite
Mud dauber nests don't quite "hatch" like an egg. Much like a bird nest, the mud remains in the same standard shape long after the nest is uninhabited.
… Even Dankowicz, 23 August, 2015 - 8:44am login or register to post comments

 
I think that other mud dauber
I think that other mud daubers might add onto existing nests?
… Even Dankowicz, 11 August, 2015 - 8:27pm login or register to post comments

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