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Tiny parasitic wasp of mason bees

Margriet,

Can you verify that this picture is a Parasitic Wasp (or not)?

Thanks.
Valeri Wade
Wild Bird Chalet
705 Kentucky Street
Bellingham, WA 98225
360-734-0969
 

 

Hi  Valerie, Thanks for sharing this photo with us and our friends.  Yes this tiny little wasp is a parasitic wasp of mason bees (and other insects).  You can see from the size of the cocoon in the background how tiny this critter really is!  At the moment that this picture was taken, this wasp was listening for bee movement inside the cocoon  ( it hears with its antennae).  Only live bees are parasitized!!  Great picture Valerie.

 
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One Response to Parasitic wasp of mason bee cocoons

  • Does anyone know the name of this wasp?
    and what are some preventative measures one can take to avoid it?
    My leafcutters in one house were decimated by these little guys

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