Flowering Plants Visited
by Geron
calvus
Geron calvus Loew: Bombyliidae, Diptera
(observations are from Robertson, Graenicher, and Wilhelm & Rericha)
Apiaceae: Cryptotaenia canadensis sn (Rb); Asteraceae: Helianthus decapetalus (WR), Heliopsis helianthoides sn fq (Rb), Rudbeckia hirta sn fq (Gr)