Flowering Plants Visited
by Ectemnius
atriceps
Ectemnius atriceps Cresson: Sphecidae (Crabroninae), Hymenoptera
(One observation is from Graenicher, otherwise observations are from Robertson)
Apiaceae: Cicuta maculata sn (Rb), Heracleum maximum sn (Rb), Pastinaca sativa sn (Rb), Polytaenia nuttalli sn (Rb), Sium suave sn fq (Rb), Zizia aurea sn fq (Rb); Asteraceae: Eupatorium perfoliatum sn (Gr), Pseudognaphalium obtusifolium sn (Rb)