Bug of the Moth June 2017: Carpenterworm Moth

Subject: unknown Sphinx moth
Location: Carrboro ,NC
May 31, 2017 8:53 pm
Found this large Sphinx moth on my front porch last night in Carrboro NC. My best thoughts were it might be a Rustic Sphinx moth.
Signature: Mary S

Carpenterworm Moth

Dear Mary,
Though it resembles a Sphinx Moth, this is actually a Carpenterworm Moth,
Prionoxystus robiniae, in the family Cossidae, which we verified by matching your individual to this BugGuide image.  According to BugGuide:  “Larvae bore in wood of living deciduous trees: locust, oak, chestnut, poplar, willow, maple, and ash.”  BugGuide also notes:  “Large, might be mistaken for a sphinx moth. ”  We will be featuring your posting as our Bug of the Month for June 2017.

Carpenterworm Moth

Wow, Thanks! I wasn’t even thinking of any moth outside of a sphinx…this girl was big! Thanks so much Daniel.

Leave a Comment