beautiful striped swallowtail butterfly caterpillar sits on bright green leaves of willow salix integra hakuro-nishik

animal background beautiful beauty biology black branch bright bug butterfly caterpillar close closeup colorful detail dots eating ecology entomology flora floral focus garden green hakuronishik hakuronishiki insect integra isolated larva leaf leaves lepidoptera machaon macro metamorphism metamorphosis nature orange outdoors papilio pest photography plant salix selective sits space striped summer swallowtail wildlife willow worm yellow