What kind of moth is this?

Asked June 18, 2018, 1:12 AM EDT

We found this unusual looking, very large moth resting on our new siding outside our front door this am. It looks like it has a body of a spider with wings. Any ideas what it could be? The wing span is 4” wide.

King County Washington polyphemus moth moth identification

1 Response

Dear Client,

Nice digital image. I do not know if you had an opportunity to observe the lower wings of this big moth- each hind wing has a enormous "eye" pattern on it!

Your moth is known as the Polyphemous moth, Antheraea polyphemus. It is one of the largest moths found in Washington State.

https://en.wikipedia.org/wiki/Antheraea_polyphemus

https://www.butterfliesandmoths.org/species/Antheraea-polyphemus

Fascinating! Enjoy your find.