Flower-Visiting Insects
of
Spatterdock
Nuphar advena (Spatterdock)
(Short-tongued bees collect pollen, while flies feed on pollen; Robertson doesn't describe it as such, but Lasioglossum nelumbonis is probably oligolectic on species of the Water Lily family; observations are from Robertson)
Bees (short-tongued)
Halictidae (Halictinae): Lasioglossum nelumbonis cp olg
Flies
Syrphidae: Parhelophilus divisus fp