Flower-Visiting Insects
of Slender Penstemon
(typical
variety)
Penstemon gracilis gracilis (Slender Penstemon, typical variety)
(insect activity is largely unspecified; observations are from Crosswhite & Crosswhite and Wilhelm & Rericha; information is limited primarily to mason bees; Osmia distincta is an oligolege of Penstemon spp.)
Bees (long-tongued)
Megachilidae (Osmiini): Hoplitis pilosifrons (WR), Osmia atriventris (CC), Osmia distincta cp olg (CC, WR), Osmia proxima (CC), Osmia pumila (CC), Osmia simillima (CC)
Bees (short-tongued)
Halictidae (Halictinae): Lasioglossum pilosum pilosum (WR)