Flower-Visiting Insects
of Western Sunflower

Helianthus occidentalis (Western Sunflower)
(the butterfly sucks nectar, while bee and beetle activity is unspecified; information is limited to bees, butterflies, and beetles; observations are from Grundel & Pavlovic, Swengel & Swengel, Lisberg & Young, Grundel et al., and Williams as indicated below)

Bees (long-tongued)
Apidae (Apinae): Apis mellifera (Gnd); Anthophoridae (Ceratinini): Ceratina strenua (Gnd); Anthophoridae (Eucerini): Melissodes trinodis (Gnd); Megachilidae (Megachilini): Megachile mendica (Gnd)

Bees (short-tongued)
Halictidae (Halictinae): Augochlora pura (Gnd), Augochlorella aurata (Gnd), Halictus ligatus (Gnd), Lasioglossum acuminatum (Gnd); Andrenidae (Andreninae): Andrena aliciae (Gnd); Andrenidae (Panurginae): Perdita bequaerti (Gnd)

Lycaenidae: Lycaeides melissa samuelis sn fq (GP, Sw)

Chauliognathus pennsylvanicus (Wms); Mordellidae: Mordellistena divisa (LY)