hover fly syrphidae,larva feeding on aphids aphis nerii

action activity animal animals aphid aphids aphis arthropod arthropoda concept day eat entomology europe feeding fly horizontal hover ingested insecta insects invertebrate larva macro maggot malta mediterranean milkweed morning nature nerii nobody nutrients nymphs oleander one outdoors predation predators prey side stalk stefanotis sunny syrphidae view wingless yellow