Flower-Visiting Insects
of Prairie Sundrops

Oenothera pilosella (Prairie Sundrops)
(Long-tongued bees collect pollen or suck nectar; short-tongued bees collect pollen & are mostly non-pollinating; flies and beetles feed on pollen & are non-pollinating; other insects suck nectar; this plant was originally described as Oenothera fruticosa by Charles Robertson, but he was probably referring to Oenothera pilosella; one observation is by Moure & Hurd as indicated below, otherwise the observations are from Robertson)

Bees (long-tongued)
Apidae (Bombini): Bombus pensylvanica sn cp fq; Anthophoridae (Ceratinini): Ceratina dupla dupla sn cp fq; Anthophoridae (Eucerini): Synhalonia speciosa sn cp; Megachilidae (Megachilini): Megachile brevis brevis sn, Megachile montivaga fq, Megachile policaris sn; Megachilidae (Osmiini): Hoplitis pilosifrons cp

Bees (short-tongued)
Halictidae (Halictinae): Agapostemon virescens cp np fq, Augochlorella striata cp np fq, Halictus confusus cp np, Halictus ligatus cp np, Halictus parallelus cp np, Halictus rubicunda cp np, Lasioglossum albipennis cp np, Lasioglossum oenotherae cp olg (MH), Lasioglossum pectoralis cp np, Lasioglossum versatus cp np

Syrphidae: Eristalis dimidiatus fp np, Eristalis stipator fp np, Eupeodes americanus fp np, Sphaerophoria contiqua fp np, Tropidia mamillata fp np; Tachinidae: Gymnoclytia immaculata fp np

Papilionidae: Battus philenor sn; Pieridae: Pontia protodice sn

Hesperiidae: Polites peckius sn, Polites themistocles sn

Chrysomelidae: Diabrotica undecimpunctata fp np; Curculionidae: Odontocorynus scutellum-album fp np fq