Mating Ironweed Curculio

Subject: Red Beetle
Location: Clarkston, WA, Northwest
June 10, 2013 8:10 pm
We found some ladybug-like beetles on our sunflowers this evening, and we wanted to know what species they were. I caught three of them in our bug catcher.
Signature: Cay Cay

Mating Ironweed Curculio
Mating Ironweed Curculio

Dear Cay Cay,
We quickly found what we believe is an Ironweed Curculio, Rhodobaenus tredecimpunctatus, a species of Weevil identified on BugGuide, though the BugGuide Data maps do not include the Pacific Northwest.  The food plant is indicated as:  “Breeds in Asteraceae such as cocklebur (Xanthium), ironweed (Vernonia), joe-pye-weed (Eupatorium), ragweed (Ambrosia).”  Sunflower is in the family Asteraceae.

Thank you so much!
We appreciate your expertise!

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