Subject: What is this ?
Location: Peyton,CO
September 3, 2015 5:17 pm
This guy/gal was walking on the porch in Colorado.
Signature: Colorado plains

Ichneumon

Ichneumon

This parasitic Ichneumon has a much stouter body than most of its numerous family members, and we believe we have correctly identified it as Trogus pennator thanks to excellent images posted to BugGuide.  According to BugGuide:  “Trogus pennator is a parasitoid of swallowtail butterflies (Papilionidae), ovipositing in the caterpillars.”

Ichneumon

Ichneumon

Location: Peyton, Colorado

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