Flower-Visiting Insects
of Field Pennycress
Thlaspi arvense (Field Pennycress) introduced
(bees suck nectar or collect pollen, flies suck nectar or feed on pollen; observations are from Krombein et al. and Best & McIntyre)
Bees (short-tongued)
Halictidae (Halictinae): Halictus confusus (BM), Lasioglossum lineatulum (BM), Lasioglossum foxii (BM); Andrenidae (Andreninae): Andrena sp. (BM), Andrena forbesii (Kr, BM), Andrena hippotes (Kr), Andrena illinoiensis (Kr), Andrena imitatrix imitatrix (Kr), Andrena nigrae (Kr), Andrena wilkella (BM)
Flies
Syrphidae: Eristalis anthophorinus (BM), Eristalis arbustorum (BM), Eristalis dimidiatus (BM), Eupeodes sp. (BM), Helophilus fasciatus (BM)
Butterflies
Pieridae: Pieris rapae sn (BM)