Flowering Plants Visited
by Blera
umbratilis
Blera umbratilis Williston: Syrphidae, Diptera
(observations are from Robertson)
Apiaceae: Heracleum maximum sn (Rb); Caprifoliaceae: Viburnum dentatum sn fq (Rb), Viburnum prunifolium sn (Rb); Cornaceae: Cornus florida sn (Rb); Lauraceae: Sassafras albidum sn fq (Rb); Rosaceae: Crataegus mollis sn (Rb), Prunus serotina [exfl sn] (Rb)