Confidence: It's likely to be this, but I can't be certain.
Notes: I was mistaken above, sorry about that. I think this can only be Spruce Carpet. The shape of rear edge of the central cross-band is a much better fit for Spruce Carpet over either Marbled Carpet species. The scalloped white line near the rear of the wing is not found on Grey Pine Carpet but it is on Spruce Carpet.