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Idaho State University

Native Bees


Hymenoptera vary in the habitats used for resources. As adults, many species are predators, feed at flowers for pollen and nectar, or use a combination of these resources. During the larval stages, some species are parasites, or pests of plants.

Bees, which include both social (e.g., bumble and honeybees) and solitary (e.g., leafcutter bees, sweat bees) species, are thought to be the most important pollinators of many native and introduced plants. Few plants in the temperate regions of the world have obligate relationships with particular pollinators but bees are considered the most efficient insects at manipulating restricted-access flowers. Some bees are cleptoparasites and will take the food collected, or otherwise prepared, including stored food, from another bee speceis. Social parasites take over the nest colonies of other bee species to exploit the brood care system of that species.

Bee families and genera often found on flowering plants and their sociality, nest sites, and provision type.

FamilyGenusSocialityNest siteProvision type
Andrenidae
 
Andrena communal, solitary soil pollen mass
Calliopsis communal, solitary soil pollen mass
Apidae
 
 
 
 
    
Anthophora solitary wood, plant stems liquid pollen, nectar, saliva mix
Diadasia solitary soil pollen mass
Triepeolus cleptoparasite host nest  
Holcopasites cleptoparasite host nest  
Melissodes communal, solitary  soil pollen mass
Nomada cleptoparasite    
Bombus eusocial, social parasites soil vegetation pollen mass progressive
Colletidae
 
Colletes solitary soil liquid pollen, nectar, saliva mix
Hylaeus solitary pre-existing cavities, plant stems liquid pollen, nectar, saliva mix
Halictidae
 
 
 
 
Agapostemon communal, solitary soil pollen mass
Dufourea solitary soil pollen mass
Halictus communal, solitary soil pollen mass
Lasioglossum eusocial, solitary soil pollen mass
Sphecodes cleptoparasite host nest  
Megachilidae
 
 
 
 
 
 
 
Anthidium solitary pre-existing cavities pollen mass
Ashmeadiella solitary wood, plant stems, soil pollen mass
Coelioxys cleptoparasite    
Dianthidium solitary pre-existing cavities pollen mass
Hoplitis solitary wood, plant stems pollen mass
Megachile solitary pre-existing cavities pollen mass
Osmia solitary pre-existing cavities pollen mass
Stelis   cleptoparasite      host nest