Flower-Visiting
Insects
of Common St. John's Wort
Hypericum perforatum (Common St. John's Wort) introduced
(Observations are from MacRae, Swengel & Swengel, Grundel et al., Williams, Wilhelm & Rericha, and O'Brien as indicated below. Bees collect pollen, beetles and flies feed on pollen, while the butterfly and wasp explore the flowers in vain for nectar. Only pollen is available as a reward for flower visitors.)
Bees (long-tongued)
Apidae (Apini): Apis mellifera cp (WR); Apidae (Bombini): Bombus bimaculatus cp (WR), Bombus griseocollis cp (WR), Bombus impatiens cp (WR); Anthophoridae (Ceratinini): Ceratina dupla cp (WR); Megachilidae (Megachilini): Megachile latimanus cp (WR)
Bees (short-tongued)
Halictidae (Halictinae): Agapostemon splendens cp (Gnd), Augochloropsis metallica metallica cp (WR), Lasioglossum imitatum cp (WR), Lasioglossum leucocomum cp (Gnd, WR), Lasioglossum pictum cp (Gnd), Lasioglossum pilosum cp (Gnd), Lasioglossum vierecki cp (Gnd); Andrenidae (Panurginae): Perdita halictoides cp (Gnd)
Wasps
Sphecidae (Sphecinae): Podalonia luctuosa exp (OB)
Flies
Syrphidae: Toxomerus marginatus fp fq (WR)
Butterflies
Lycaenidae: Lycaeides melissa samuelis exp (Sw)
Beetles
Buprestidae: Acmaeodera texana fp (McR), Acmaeodera tubulus fp (McR); Cantharidae: Chauliognathus pennsylvanicus fp (Wms); Curculionidae: Odontocorynus scutellum-album (WR)