Here are two lepidopterans I collected in Oregon (USA). The wingspan of the bigger one (on the left) is ~4 cm. I spent a lot of time browsing this website hoping to find a match, but I didn't have success.
The one on the left is a Lunate Zale Moth (Zale lunata). See Western Washington University's PNW moths page for more detailed info.
The one on the right is a Forage Looper Moth (Caenurgina erechtea). See here for an image similar to the one in the question. And again take a look at Western Washington University's PNW moths page for more detailed info.