Flowering Plants Visited
by Chalcosyrphus
violascens
Chalcosyrphus violascens Megerle: Syrphidae, Diptera
(observations are from Robertson; a junior synonym for the scientific name of this fly is Chalcosyrphus chalybeus)
Caprifoliaceae: Viburnum dentatum sn (Rb); Hydrophyllaceae: Hydrophyllum appendiculatum sn (Rb); Rosaceae: Rosa carolina fp np (Rb), Rosa setigera fp np (Rb)