close up of bay checkerspot butterfly euphydryas editha bayensis ; classified as a federally threatened species, south san

america area bay bayensis bright butterfly california chalcedona checkerspot classified close closed closeup color colorful copy critically delicate detail editha endangered euphydryas federally flower fly fragile francisco free green insect jose macro meadow natural nature orange pollen protected san season seasonal small south space specie species spread spring springtime threatened time tips usa white wild wildflower wildlife wings yellow