closeup on a male triangular lucent swafly, didea alneti on a white heracleum sphondylium flower

arthropoda apiaceae arthropod austria didea alneti diptera ecology flora heracleum sphondylium hogweed insect nature plant syrphidae triangular lucent animal biennial biology botanical botany closeup cow parsnip entomology flower fly flowering herbaceous perennial hoverfly invertebrate macro male outdoors single umbellifers white wild wildflower wildlife natural swafly