Flowering Plants Visited
by Olcella
cinerea
Olcella cinerea Loew: Chloropidae, Diptera
(observations are from Robertson)
Apiaceae: Heracleum maximum sn (Rb), Oxypolis rigidior sn (Rb), Sium suave sn (Rb), Zizia aurea sn (Rb); Asteraceae: Rudbeckia subtomentosa sn (Rb); Rosaceae: Aruncus dioicus [stam sn] (Rb)