What's That Bug? does not endorse extermination

Subject: What is this pretty bug?
Location: Toronto, Ontario
July 9, 2017 4:43 pm
I found this pretty bug flying around my bush and I don’t recall ever seeing one before. It’s purplish wings were really pretty in the sunlight. Could you please identify it for me?
Signature: Caitlin

Ichneumon: Trogus pennator

Dear Caitlin,
The long antennae on this magnificent wasp caused us to correctly speculate it must be an Ichneumon, and we quickly identified it on BugGuide as
Trogus pennator.  According to BugGuide:  “Trogus pennator is a parasitoid of swallowtail butterflies (Papilionidae), ovipositing in the caterpillars.  The solitary larva develops inside the caterpillar, allowing it to pupate before killing it. After metamorphosing, the adult wasp chews an irregular hole in the chrysalis to escape.”

Ichneumon: Trogus pennator

What's That Bug? does not endorse extermination
Location: Toronto, Ontario, Canada

4 Responses to Ichneumon from Canada

  1. I’ve never seen a bug with these pretty wings

  2. really very beautiful bug . lovely wings.

  3. helix jump says:

    i am totally agree with the author .

Leave a Reply

Your email address will not be published. Required fields are marked *