er... dunno on the name Dark Spinach. Looked it up, the moth feeds on "orache (Atriplex) and goosefoot (Chenopodium)."
Spinach is apparently in the same family - Amaranthaceae as these. It may feed on Spinach leaves, but I doubt it would be to any sort of 'pest' levels...?
Barred Yellow was my fave too 💛