I have to disagree with you there. The angle of the FW apex and tornus, the costa shape, as well as the FW/HW ratio, taken together, isn't correct for anything in Sterrhinae.

I had suggested in private correspondence with a couple of people more knowledgeable with western moths, a possibly very worn female Rindgea maricopa, which is known in southern California. It was concurred a very likely probability, but no commitment given the state of wear, albeit it seems everyone agreed it is something near Digrammia/Rindgea.

Here's a photo of R. maricopa from BOLD for comparison:

Thanks for correcting me. Do you think it's worth keeping this image? I can move it back to Ennominae or to a lower level if you think it shouldn't be frassed.

I would say keep, mainly in hopes that others (particularly one of the western experts on BG) might comment their thoughts. If a consensus agrees on the ID, we would have a valuable addition.

I meant to come back and comment on the possible ID a long time ago, but it slipped by, so I'm glad you moved it and called attention to it again. If anything, now that some ID comments have been made, I think it's worth keeping around for a while longer.