Our summer fundraiser has arrived, and we need your help!
We depend on donations to keep Butterflies and Moths of North America online and free. If everyone who uses this resource makes a donation, we could cover our ongoing costs, develop new features, upgrade the system, and maybe even remove those pesky ads. Please make a one-time or recurring donation to show your support for this valuable source of information. Thank you!
Observation notes: This was by far the largest underwing moth I have ever seen! It was on aphid infested Canada thistle. Is it possible that it was obtaining nourishment from the aphids, as do other insects?
Verified by: J_Martineau
Verified date: September 28, 2017
Coordinator notes: I've never seen or heard of them utilizing aphid honeydew, but don't see why they wouldn't. Sugar baits are known to be good for attracting C. junctura.
I live in Sheridan and observed many this species this year, though none that high in elevation.