European Swallowtail Butterfly (Papilio machaon) resting on Buddleia flower, captive

terrestrial horizontals invertebrate animals flowers captive horizontal wildlife buddleia cold papilio insects entomology flora pattern flower insect resting wings ectotherms british developed country delicate bugs arthropoda england uk machaon butterfly butterfly wing ectothermic europe uk britain blooded flower european herbivorous arthropods patterned patterns nature united kingdom herbivores insecta lepidoptera arthropod english colour zoology insect invertebrates developed countries herbivore colours butterflies european butterflies ectotherm bug papilionidae swallowtail fauna animal