Members of this noctuid genus seem to possess a remarkable tolerance for metabolic activity in cold weather. This genus (Ufeus) lingered long after our late-season geometrids (e.g., Alsophila and Operophtera) and noctuids (e.g., Anagrapha and Autographa) disappeared last Fall, and I'm surprised to find an active individual so early in the season, long before our normally 'early' noctuid (e.g., species (e.g., Enargia, Eupsilia, Orthosia, and Copivaleria) and early geometrid species (e.g., Paleacrita and Phigalia) have appeared. We may be on the cusp of an early Spring in our area, although now with some fresh snow on the ground during the last couple of days...well, I could be wrong about an early Spring. We'll see. Systematic censusing of our local moths will begin in mid-March. Normally, we don't see usually adult moths with any frequency until early April in our area. ;-)