Flower-Visiting Insects
of Knapweed
Centaurea spp. (Knapweed) introduced
(hummingbird moths and the bee suck nectar; observations are from Tartaglia and Rightmyer as indicated below)
Bees (long-tongued)
Anthophoridae (Epeolini): Triepeolus concavus sn (Rtm)
Moths
Sphingidae: Hemaris diffinis sn (Trt), Hemaris gracilis sn (Trt), Hemaris thysbe sn (Trt)