Tuesday, 20 July 2021

Tiger Bee Fly

Subject:  Large Fly?
Geographic location of the bug:  Gaithersburg, Maryland, USA
Date: 07/19/2021
Time: 02:56 PM EDT
Your letter to the bugman:  This fly(?) has been flying around my deck.  He is about 1″ long.  He seems to like sitting on this light colored umbrella, but he does land on darker surfaces.
How you want your letter signed :  NancyA

Tiger Bee Fly

Dear NancyA,
This impressive fly is a Tiger Bee Fly, a parasitoid that preys on Carpenter Bees.  According to the Missouri Department of Conservation:  “The female tiger bee fly deposits her eggs in places where carpenter bees have laid their eggs. The bee fly larvae eat the carpenter bee larvae.”

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