Flower-Visiting Insects
of Stout Blue-Eyed
Grass
Sisyrinchium angustifolium (Stout Blue-Eyed Grass)
(Short-tongued bees suck nectar and/or collect pollen; other insects suck nectar; observations are from Robertson and Wilhelm & Rericha as indicated below; this information also includes observations for Sisyrinchium gramineum)
Bees (long-tongued)
Apidae (Bombini): Bombus auricomus sn (Rb), Bombus griseocollis sn (Rb); Anthophoridae (Nomadini): Nomada superba superba sn (Rb); Megachilidae (Osmiini): Osmia pumila sn (Rb)
Bees (short-tongued)
Halictidae (Halictinae): Augochlora pura pura (WR), Augochlorella aurata sn cp (Rb, WR), Augochlorella striata sn cp fq (Rb), Halictus confusus sn cp fq (Rb), Lasioglossum pilosum pilosum sn cp (Rb, WR), Lasioglossum pruinosum sn cp (Rb), Lasioglossum versatum sn cp fq (Rb), Lasioglossum vierecki (WR); Andrenidae (Andreninae): Andrena cressonii sn cp (Rb)
Flies
Syrphidae: Helophilus latifrons sn (Rb), Sphaerophoria contiqua sn (Rb), Toxomerus marginatus (Rb); Bombyliidae: Bombylius atriceps sn (Rb)