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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)
Photo#1105739
Megachilidae bee? - Trypoxylon
Copyright © 2015 Eric Preston

Megachilidae bee? - Trypoxylon
Madison, Dane County, Wisconsin, USA
July 19, 2015
Size: less than one inch long
I have this bee in a bee box I made with about 3/8" diameter holes (I think). I haven't been able to get a photo of any other perspective other than the face. I think it's in the Megachilidae family, but that's only a guess.
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Contributed by Eric Preston on 20 July, 2015 - 12:13pm
Last updated 11 November, 2016 - 3:27pm

Moved
Moved from ID Request.
… John S. Ascher, 24 July, 2015 - 8:48am login or register to post comments

Not a bee...
This is a keyhole wasp in the genus Trypoxylon. They are related to the common Organ-Pipe mud dauber, which you've probably seen before since they build familiar tube shaped nests:

These are about half the size though, and nest in cavities instead of building free-standing nests. These are much rarer than most Megachilids, so you can count yourself lucky to have one nesting in your nestbox :D

Here's a pic of one's face to compare:

And a pic of the wasp itself (note the similarity to the organ pipe mud dauber):
… k jkh, 20 July, 2015 - 3:38pm login or register to post comments

 
Trypoxylon wasp
Very cool. Thanks.
… Eric Preston, 20 July, 2015 - 5:00pm login or register to post comments

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