Clouded yellow butterfly (colias croceus) perched on buddleia flower

terrestrial invertebrate animals flowers yellow pieridae wildlife buddleia cold insects entomology flora flower insect coliadinae ectotherms bugs arthropoda yellow butterfly butterfly winged ectothermic colias blooded flower arthropods nature papilionoidea insecta clouded vertical lepidoptera diurnal arthropod zoology invertebrates butterflies purple verticals croceus ectotherm bug fauna animal