Helophilus pendulus is a European hoverfly

helophilus pendulus european hoverfly scientific name dangling marshlover insect entomology hovering behavior wildlife natural habitat taxonomy ecological role pollinator invertebrate fly species biological nomenclature aquatic habitats wetlands pollination ecosystem nectar source floral interactions biodiversity adult hoverfly larval stage flowervisiting behavior wildlife diversity entomological research insect morphology nature observation habitat preference ecological significance fly anatomy pollen dispersal wetland ecosystems biodiversity conservation wildlife photography ecological interactions fly species distribution nectar feeding aquatic insect habitat conservation floral ecology marshland habitats taxonomic classification flower pollination insect lifecycle aquatic pollinator 4k hoverfly