Flower-Visiting Insects
of Prairie Willow


Salix humilis (Prairie Willow)
(Insect visitors suck nectar; some bees also collect pollen from staminate flowers, as indicated below; a few observations are from Krombein et al. as indicated below, otherwise they are from Robertson; information about oligolegy in bees is from Krombein et al.)

On staminate flowers:

Bees (long-tongued)
Apidae (Apinae): Apis mellifera cp; Anthophoridae (Nomadini): Nomada dentariae sn, Nomada ovatus sn, Nomada sayi sn; Megachilidae (Osmiini): Osmia lignaria lignaria sn

Bees (short-tongued)
Halictidae (Halictinae): Augochlorella striata sn, Halictus rubicunda sn fq, Lasioglossum cinctipes sn fq, Lasioglossum forbesii sn, Lasioglossum foxii sn, Lasioglossum imitatus sn, Lasioglossum pilosus pilosus sn, Lasioglossum pruinosus sn, Lasioglossum versatus sn fq, Lasioglossum zephyrus sn; Colletidae (Colletinae): Colletes simulans armata sn fq; Andrenidae (Andreninae): Andrena barbilabris sn, Andrena bisalicis sn cp fq olg (Rb, Kr), Andrena carlini sn fq, Andrena cressonii sn fq, Andrena erythrogaster sn cp olg (Rb, Kr), Andrena erythronii sn fq, Andrena fenningeri cp olg (Kr), Andrena forbesii sn fq, Andrena hippotes sn, Andrena illinoiensis sn olg, Andrena imitatrix imitatrix sn fq, Andrena mandibularis sn, Andrena mariae sn cp olg, Andrena miserabilis bipunctata sn fq, Andrena salictaria cp olg (Kr), Andrena sayi sn

Wasps
Chrysididae: Chrysura pacifica

Flies
Syrphidae: Brachypalpus oarus fq, Eristalinus aeneus, Eristalis dimidiatus fq, Eristalis transversus, Eupeodes americanus, Helophilus fasciatus fq, Orthonevra nitida, Sphaerophoria contiqua; Conopidae: Myopa vesiculosa; Calliphoridae: Cynomya cadaverina, Phormia regina; Muscidae: Neomyia cornicina fq; Anthomyiidae: Delia platura; Sepsidae: Sepsis violacea fq; Scathophagidae: Scathophaga furcata fq

Butterflies
Nymphalidae: Nymphalis antiopa

Beetles
Orsodacnidae: Orsodacne atra; Coccinellidae: Hippodamia parenthesis; Lampyridae: Ellychnia corrusca

Plant Bugs
Miridae: Lygus lineolaris fq; Pentatomidae: Euschistus variolaria

On pistillate flowers:

Bees (long-tongued)
Apidae (Apinae): Apis mellifera fq; Apidae (Bombini): Bombus impatiens; Anthophoridae (Ceratinini): Ceratina dupla dupla fq; Megachilidae (Osmiini): Osmia lignaria lignaria

Bees (short-tongued)
Halictidae (Halictinae): Agapostemon sericea, Halictus confusus, Halictus rubicunda fq, Lasioglossum cinctipes fq, Lasioglossum forbesii, Lasioglossum versatus fq; Halictidae (Sphecodini): Sphecodes dichroa; Colletidae (Colletinae): Colletes simulans armata fq; Andrenidae (Andreninae): Andrena bisalicis fq olg, Andrena carlini fq, Andrena cressonii fq, Andrena erythrogaster olg, Andrena erythronii fq, Andrena forbesii fq, Andrena illinoiensis olg, Andrena miserabilis bipunctata fq

Wasps
Ichneumonidae: Colpognathus helvus, Ichneumon annulatorius

Sawflies
Tenthredinidae: Dolerus bicolor fq, Dolerus sericeus, Dolerus unicolor fq

Flies
Syrphidae: Brachypalpus oarus fq, Eristalis dimidiatus fq, Eristalis stipator, Eupeodes americanus, Helophilus fasciatus fq, Sphaerophoria contiqua; Calliphoridae: Cynomya cadaverina, Phormia regina; Muscidae: Helina rufitibia, Neomyia cornicina fq; Anthomyiidae: Delia platura; Sepsidae: Sepsis violacea fq; Scathophagidae: Scathophaga furcata fq

Plant Bugs
Lygaeidae: Lygaeus turcicus

Flower gender unspecified:

Bees (short-tongued)
Andrenidae (Andreninae): Andrena nigrae (Kr)


Return