Flowering Plants Visited
by Poecilanthrax
alcyon
Poecilanthrax alcyon Say: Bombyliidae, Diptera
(observations are from Robertson and Graenicher)
Asteraceae: Aster anomalus sn (Rb), Aster puniceus sn/fp (Gr), Bidens cernua sn (Rb), Eupatoriadelphus purpureus sn (Gr), Eupatorium perfoliatum sn/fp (Gr), Euthamia graminifolia sn/fp (Gr), Helenium autumnale sn/fp (Rb, Gr), Helianthus divaricatus sn (Rb), Helianthus strumosus sn/fp (Rb, Gr), Helianthus tuberosus sn fq (Rb), Heliopsis helianthoides sn (Rb), Rudbeckia hirta sn/fp (Gr), Rudbeckia laciniata sn/fp (Gr), Rudbeckia triloba sn fq (Rb), Silphium perfoliatum sn (Rb), Solidago canadensis sn/fp (Gr), Solidago juncea sn/fp (Gr)