Flowering Plants Visited
by Ectemnius
maculosus
Ectemnius maculosus Gmelin: Sphecidae (Crabroninae), Hymenoptera
(observations are from Robertson, Graenicher, Reed, and Wilhelm & Rericha)
Apiaceae: Cicuta maculata sn (WR), Eryngium yuccifolium sn (WR), Heracleum maximum sn (Rb), Oxypolis rigidior sn (WR), Sium suave sn (WR); Asteraceae: Achillea millefolium sn (Gr), Ageratina altissima sn (WR), Arnoglossum atriplicifolium sn (WR), Aster lanceolatus sn (Gr), Aster lateriflorus sn (Gr), Aster prenanthoides sn (Gr), Eupatorium serotinum sn (WR), Helianthus strumosus sn (Gr), Rudbeckia subtomentosa sn (WR), Solidago canadensis sn (Rb, Gr, Re, WR), Solidago gigantea sn (WR), Solidago juncea sn (Gr, WR), Solidago patula sn (WR), Solidago ulmifolia sn (WR); Lamiaceae: Pycnanthemum virginianum sn (WR)