Flower-Visiting Insects
of Tall Thistle

Cirsium altissimum (Tall Thistle)
(bees collect pollen or suck nectar; flies and beetles feed on pollen; other insects suck nectar; observations are from Robertson, Graenicher, Macior, Williams, and Kopper et al. as indicated below)

Bees (long-tongued)
Apidae (Apinae): Apis mellifera sn cp (Rb, Gr); Apidae (Bombini): Bombus affinis sn (Gr), Bombus auricomus sn cp (Rb, Gr), Bombus fernaldae sn (Mc), Bombus fraternus sn (Rb), Bombus griseocallis sn (Gr), Bombus impatiens sn cp (Rb), Bombus pensylvanica sn cp fq (Rb, Gr), Bombus vagans sn cp (Rb, Gr), Psithyrus variabilis sn (Rb, Gr); Anthophoridae (Ceratinini): Ceratina dupla dupla sn (Rb, Gr); Anthophoridae (Epeolini): Triepeolus donatus sn (Gr); Anthophoridae (Eucerini): Melissodes agilis sn (Rb), Melissodes desponsa sn cp fq olg (Rb, Gr), Melissodes trinodis sn (Gr), Svastra obliqua obliqua cp (Rb); Megachilidae (Coelioxini): Coelioxys rufitarsis rufitarsis sn (Gr); Megachilidae (Megachilini): Megachile latimanus sn cp (Gr); Megachilidae (Trypetini): Heriades leavitti sn cp np (Rb)

Bees (short-tongued)
Halictidae (Halictinae): Agapostemon virescens sn (Rb), Lasioglossum connexus cp np (Gr), Lasioglossum imitatus cp np (Rb, Gr), Lasioglossum pilosus pilosus cp np (Gr), Lasioglossum zephyrus cp np (Gr); Halictidae (Nomiinae): Nomia nortoni nortoni (MH)

Syrphidae: Eristalis tenax fp (Gr), Eupeodes volucris fp (Gr)

Nymphalidae: Danaus plexippus (Gr), Limenitis archippus (Rb, Gr), Speyeria aphrodite alcestis (Gr), Speyeria cybele (Rb, Gr), Speyeria idalis fq (Gr, KMC), Vanessa atalanta (Rb), Vanessa virginiensis (Gr); Pieridae: Pieris rapae (Gr); Papilionidae: Papilio cresphontes (Rb), Papilio glaucus (Rb, Gr), Papilio polyxenes asterias (Gr), Papilio troilus (Rb)

Hesperiidae: Polites themistocles (Gr)

Sphingidae: Hemaris thysbe (Rb), Hyles lineata (Rb)

Chauliognathus pennsylvanicus (Wms); Chrysomelidae: Diabrotica undecimpunctata fp (Gr); Scarabaeidae (Cetonniae): Trichiotinus piger fp (Gr)