One day I would love to know how many of our moths received their common names. So many of them are interesting and perfect, like this, the sweetheart underwing (Catocala amatrix). In this case, the Latin binomial agrees. Catocala referring to the namesake, hidden underwing and amatrix meaning lover.
This moth was found in Franklin County, MO.
I’m never really fortunate enough to get a good image with their hindwings exposed, but here is a glimpse of the beauty they keep hidden, apparently useful for startling would-be predators upon their taking flight.