bay checkerspot butterfly (euphydryas editha bayensis) on a tidytips (layia platyglossa) wildflower; classified as a federally

america bay blooming bright butterfly california chalcedona checkerspot close up closeup color colorful critically delicate endangered euphydryas editha bayensis floral flower fly fragile insect layia platyglossa macro natural nature nectar orange pollen pollinating pollination rosette san francisco season seasonal small specie spread spring springtime threatened tidy tidytips time tips white wild wildflowers wildlife wings yellow