Flower-Visiting Insects
of Field Hawkweed
Hieracium caespitosum (Field Hawkweed) introduced
(A scientific synonym of this plant is Hieracium pratensis. Bees suck nectar or collect pollen, flies suck nectar or feed on pollen, the butterfly sucks nectar; observations are from Grundel et al. and Wilhelm & Rericha as indicated below)
Bees (long-tongued)
Apidae (Apinae): Apis mellifera (WR); Anthophoridae (Ceratinini): Ceratina calcarata (WR), Ceratina dupla dupla (Gnd, WR), Ceratina mikmaqi (WR), Ceratina strenua (Gnd); Megachilidae (Coelioxini): Coelioxys octodentata sn (WR); Megachilidae (Megachilinae): Megachile relativa (WR); Megachilidae (Osmiini): Osmia atriventris (WR)
Bees (short-tongued)
Halictidae (Halictinae): Augochlorella aurata (Gnd, WR), Halictus confusus (WR), Halictus ligatus (Gnd, WR), Lasioglossum coriaceum (WR), Lasioglossum ephialtum (WR), Lasioglossum fuscipenne (Gnd), Lasioglossum leucozonium (Gnd), Lasioglossum pectorale (Gnd, WR), Lasioglossum pilosum pilosum (Gnd, WR), Lasioglossum vierecki (Gnd, WR)
Flies
Syrphidae: Paragus bispinosus (WR), Toxomerus marginatus (WR)
Butterflies
Nymphalidae: Phyciodes tharos sn (WR)