bay checkerspot butterfly (euphydryas editha bayensis) on a goldfield wildflower; classified as a federally threatened species,

america bay beautiful beauty bloom blooming blossom bright butterfly california chalcedona checkerspot close up closeup colorful critically delicate endangered euphydryas editha bayensis flower fly fragile goldfields insect lasthenia californica macro meadow natural nature nectar orange pollen pollinating pollination san francisco season seasonal small specie spread spring springtime time vibrant vivid wild wildflowers wildlife wings yellow