male specimen of silver-washed fritillary butterfly

amethyst amethystinum apiaceae argynnis beauty black butterfly caterpillar closeup colors common daylight drawings enthomologist enthomology environment environmental eryngium eryngo europe flight flowers fly fritillary herb hill insect italian italy lawn male metamorphosys moth natural nature nymphalidae orange outdoor paphia perennial plant season seasonal silverwashed spots summer sunlight sunny terni umbria upperside wings woodland woods zoology