Lilac Borer from Canada

Subject:  Some Type of wasp or hornet
Geographic location of the bug:  Ontario, Canada
Date: 06/26/2018
Time: 11:34 AM EDT
Your letter to the bugman:  I came across this type of hornet that I had not seen before and looked up in a big identification website but nothing there was similar to this particular one.
How you want your letter signed:  Hornet identification for Chuck

Lilac Borer

Dear Chuck,
Though it looks very convincingly like a hornet or wasp, this Lilac Borer,
Podosesia syringae, is actually a moth in the family Sesiidae, whose members are very convincing wasp mimics, including this Sycamore Borer.  Here is an image from BugGuide that supports our identification.  According to BugGuide:  “Larvae bore in the limbs and trunk of various Oleaceae, including ash (Fraxinus), lilac (Syringae), olive (Olea), privet (Ligustrum) and fringetree (Chionanthus). It can be a serious pest in commercial plant operations.”  This is a new species for our site.

Thanks Daniel,
Very interesting.. Sure looked like a hornet or wasp, but I can see that this makes sense now..
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BugMan aka Daniel Marlos has been identifying bugs since 1999. is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

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