Flower-Visiting Insects
of Canada Black
Snakeroot
Sanicula canadensis (Canada Black Snakeroot)
(Insects suck nectar; observations are from Robertson)
Bees (short-tongued)
Halictidae (Halictinae): Lasioglossum macoupinensis, Lasioglossum versatus; Colletidae (Hylaeinae): Hylaeus saniculae
Flies
Syrphidae: Toxomerus geminatus