Flower-Visiting Insects
of Garlic Mustard

Alliaria petiolata (Garlic Mustard)
(bees suck nectar from the flowers primarily and collect pollen to a lesser extent, while ants suck nectar from the flowers shortly after their petals fall off; observations are from Krombein et al. and Wilhelm & Rericha as indicated below)

Bees (long-tongued)
Apidae (Apinae): Apis mellifera (WR); Anthophoridae (Ceratinini): Ceratina calcarata (WR); Megachilidae (Osmiini): Osmia atriventris (WR)

Bees (short-tongued)
Halictidae (Halictinae): Agapostemon sericeus (WR), Augochlora pura pura (WR), Lasioglossum cinctipes (WR), Lasioglossum foxii (WR), Lasioglossum subviridatum (WR); Andrenidae (Andreninae): Andrena carlini (WR),  Andrena cressonii (WR), Andrena forbesii (Kr), Andrena nasonii (WR), Andrena personata (Kr), Andrena spiraeana (Kr), Andrena vicina (WR)

Formicidae: Camponotus pennsylvanicus sn np (WR), Formica incerta sn np (WR), Formica pallidefulva sn np (WR), Formica subsericea sn np (WR), Lasius alienus sn np (WR), Prenolepis imparis sn np (WR), Tapinoma sessile sn np (WR)