More Urban Species by my porch light

[urbpan]

This little moth--just over a centimeter wing span--was by the porch light. At that scale it looked like a dainty pretty thing, but close up you can see a lot of detail in the wing pattern. Are those markings meaningful to the animal? I got a fairly confident identification from a moth ID group, calling it Idaea dimidiata, the "single-dotted wave." This species is native to Europe, found throughout the north of North America. It's larva is a small inchworm that must eat some plant found on both continents.