Flowering Plants Visited
by Parhelophilus
laetus
Parhelophilus laetus Loew: Syrphidae, Diptera
(observations are from Robertson, Graenicher, Reed, and Small; another scientific name of this fly is Helophilus laetus)
Acanthaceae: Justicia americana fp np (Rb); Apiaceae: Pastinaca sativa (Gr); Apocynaceae: Apocynum cannabinum [plab sn] (Rb); Asteraceae: Aster lanceolatus sn/fp (Gr), Solidago canadensis sn/fp (Gr); Brassicaceae: Berteroa incana sn/fp (Re); Caprifoliaceae: Symphoricarpos orbiculatus sn (Rb); Caryophyllaceae: Stellaria longifolia sn (Rb); Liliaceae: Smilacina stellata sn/fp (Gr); Rosaceae: Aronia melanocarpa (Sm), Spiraea alba (Sm)