berger's clouded yellow butterfly aka colias alfacariensis on yellow flower.

insect butterfly animal invertebrate nature flower yellow pollinator grass meadow arthropod plant green leaf wildlife wildflower prairie berger#39aph39#s clouded aka colias alfacariensis early sunny day autumn czech republic alfacariensis animal autumn background beautiful beauty berger berger yellow bloom blossom butterflies butterfly close-up closeup clouded colias color colorful republic detail ecology entomology environment european european fauna flower garden grass green insect insecta invertebrate lepidoptera macro meadow natural nature nectar outdoor pieridae plant species wild wildlife wings