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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#26751
Mud Dauber - Trypoxylon politum - female
Copyright © 2005 Matthew Roth

Mud Dauber - Trypoxylon politum - Female
Michoux State Forest, Franklin County, Pennsylvania, USA
July 23, 2005
Size: 1 inch long

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Mud Dauber - Trypoxylon politum - female Mud Dauber - Trypoxylon politum - female
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Contributed by Matthew Roth on 4 August, 2005 - 1:29pm
Last updated 15 December, 2005 - 10:39am

Female.
This looks to be a female. Males have a very wicked-looking hook on the underside of the abdomen, easily visible in profile. The function of the hook is unknown, but suspected to help anchor him at the nest entrance during guard duty so that other males cannot usurp him and mate with 'his' female.
… Eric R. Eaton, 4 August, 2005 - 3:40pm login or register to post comments

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