Scientifically, “Pieris rapae.” I hardly *ever* get to see top surfaces of this species' wings. My experience has been "wings up" whenever they light on a plant, so I was pleased to be able to get this shot.
From the BugGuide species page, “RAPAE: from the Latin ‘rapa’ (turnip); Cabbage (Brassica oleracea) and other members of the genus such as Brassica rapa (commonly known as Field Mustard or Rape) are members of the mustard family (Brassicaceae, formerly Cruciferae), which are the larval food plants.”
Retired economics professor (“dismal scientist”). Married 40+ years to the love of my life; we have two grown daughters, both married, two granddaughters and a...