Flower-Visiting Insects
of Large-Flowered Trillium

Trillium grandiflorum (Large-Flowered Trillium)
(Bees suck nectar, collect pollen, or find shelter [shl] in the flowers; fly activity is unspecified; observations are from Graenicher and Irwin)

Bees (long-tongued)
Apidae (Apinae): Apis mellifera sn cp (Irw); Apidae (Bombini): Bombus spp. sn cp (Irw); Anthophoridae (Ceratinini): Ceratina dupla dupla sn cp (Gr)

Bees (short-tongued)
Andrenidae (Andreninae): Andrena geranii shl np (Gr)

unspecified species from unspecified families (Irw)