Insect and Spider Identification: Curious assembly of moths , 1 by svejkovat

svejkovat wrote:
Each year, in the middle of July, these moths seem strangely attracted to the grille of my truck for a few days. They collect nowhere else in the entire yard and sometimes as many as a dozen will be fluttering in and out of the grille, never lighting on anything or appearing to interact with one another. There is a strong sweet smell of antifreeze (but no leaks) around the grille on a hot day. I wonder if anyone else has noticed this behavior?
It's a bad picture, but they would just not cooperate by getting together for a group shot.