Mason Wasp

Subject: wasp ?
Location: Amherst Nova Scotia Canada
May 23, 2014 5:45 pm
I took this picture May 22 2014 on our front deck, I have tried to identify this insect but cannot
Signature: Charles W Linney

Mason Wasp
Mason Wasp

Hi Charles,
This is a Mason Wasp or Potter Wasp in the family Eumeninae.  We are having trouble identifying it to the species level since so many species and genera look so similar, so we will leave that to an expert.  Members of the family, according to BugGuide:  “prey mainly upon moth larvae” and they provision their nests with the caterpillars to provide food for the developing larval wasps.  The nests often resemble small ceramic pots and they are constructed of mud.

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