Flower-Visiting Insects
of Compass
Plant
Silphium laciniatum (Compass Plant)
(Bees collect pollen or suck nectar; flies mostly suck nectar; other insects suck nectar; most observations are from Robertson, otherwise they are from Petersen as indicated below)
Bees (long-tongued)
Apidae (Apinae): Apis mellifera sn; Apidae (Bombini): Bombus bimaculatus (Pt), Bombus fervidus (Pt), Bombus griseocallis sn, Bombus pensylvanica sn, Bombus vagans (Pt); Anthophoridae (Ceratinini): Ceratina dupla dupla sn; Anthophoridae (Epeolini): Triepeolus concavus sn, Triepeolus lunatus concolor sn; Anthophoridae (Eucerini): Melissodes agilis sn fq, Melissodes bimaculata bimaculata sn, Melissodes coloradensis sn cp fq, Svastra obliqua obliqua sn; Megachilidae (Megachilini): Megachile brevis brevis sn, Megachile parallela parallela sn, Megachile pugnatus sn cp
Bees (short-tongued)
Halictidae (Halictinae): Agapostemon texanus texanus sn cp, Agapostemon virescens sn cp, Halictus ligatus cp np, Lasioglossum imitatus cp np, Lasioglossum pilosus pilosus cp np
Flies
Syrphidae: Allograpta obliqua sn, Eristalis stipator sn, Eristalis transversus sn, Tropidia mamillata sn; Bombyliidae: Systoechus vulgaris sn, Villa alternata fp np; Conopidae: Zodion fulvifrons sn, Zodion obliquefasciatum sn
Butterflies
Nymphalidae: Danaus plexippus sn; Pieridae: Colias philodice sn fq