Ключевые слова: abdomen, adult, arthropod, black bars, blossom, compound eye, dark brown marks, feeding, female, flower, flowering, head, hornaarzweefvlieg, hornet, hornet mimic hoverfly, hoverfly, invertebrate, legs, nectar, pollination, pollinator, reddish, reddishbrown, reddishyellow, scutellum, shining, shrub, stadsreus, thorax, true fly, volucella zonaria, wings, zweefvlieg,