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California Native Bee Society

Help Us Choose a State Bee

With your help, the California Native Bee Society is launching a statewide effort to select a species that represents our remarkable native pollinators.

California is home to more than 1,600 bee species, but we don’t have an official State Bee yet. Here are the nominees that you submitted! You can use this page to help you choose the bee that you think best represents our state!

Click here to see our other state symbols.

Bee Family: Andrenidae

Andrena auricoma Michelle Graydon
Andrena auricoma - Golden-haired Mining Bee
Andrena blennospermatis - no common name
Andrena blennospermatis - no common name
Andrena cerasifolii Cherry Plum Mining Bee
Andrena cerasifolii - Cherry Plum Mining Bee
Perdita californica California Fairy Bee
Perdita californica - California Fairy Bee

Diet: Generalist

Sociality: Solitary

Size: 8-10 mm long

Nesting strategy: Underground burrows dug in bare soil

Pollen transport: On the hind legs and on specialized hairs on the back of the thorax

Range: Western North America, widespread across much of California

Diet: Specialist on Blennosperma flowers

Sociality: Solitary

Size: 7-9 mm long

Nesting strategy: Underground burrows

Pollen transport: On the hind legs

Range: California and Baja California endemic

Diet: Generalist

Sociality: Solitary

Size: 10-13 mm long

Nesting strategy: Underground burrows

Pollen transport: On the hind legs and on specialized hairs on the back of the thorax

Range: Western North America, widespread across California

Diet: Specialist on mariposa lily (Calochortus spp.) flowers

Sociality: Solitary
Size: 6 mm long

Nesting strategy: Underground burrows

Pollen transport: On the hind legs

Range: Endemic to California and Baja California

Bee Family: Apidae

Bombus californicus California - Bumble Bee
Bombus californicus California - Bumble Bee
Bombus caliginosus - Fog-belt Bumble-Bee
Bombus caliginosus - Fog-belt Bumble-Bee
Bombus crotchii - Crotch Bumble Bee
Bombus crotchii - Crotch Bumble Bee
Bombus melanopygus - Black tailed Bumble Bee
Bombus melanopygus - Black tailed Bumble Bee

Diet: Generalist

Sociality: Social, living in annual colonies

Size: 10-26 mm long, depending on caste
Nesting strategy:
Underground cavities, often abandoned rodent burrows

Pollen transport: On the hind legs in “pollen baskets” (corbicula)

Range: Western North America

Diet: Generalist

Sociality: Social, living in annual colonies

Size: 10-26 mm long, depending on caste
Nesting strategy:
Underground cavities, often abandoned rodent burrows

Pollen transport: On the hind legs in “pollen baskets” (corbicula)

Range: Western North America along the coast

Diet: Generalist

Sociality: Social, living in annual colonies

Size: 14-24 mm long, depending on caste
Nesting strategy:
Underground cavities, often abandoned rodent burrows

Pollen transport: On the hind legs in “pollen baskets” (corbicula)

Range: Endemic to California and Baja California

Diet: Generalist

Sociality: Social, living in annual colonies

Size: 10-21 mm long, depending on caste
Nesting strategy:
Underground cavities, often abandoned rodent burrows

Pollen transport: On the hind legs in “pollen baskets” (corbicula)

Range: Western North America

Bombus vosnesenskii - Yellow-faced Bumble Bee
Bombus vosnesenskii - Yellow-faced Bumble Bee
Diadasia australis -Cactus Chimney Bee
Diadasia australis -Cactus Chimney Bee
Diadasia bituberculata - Bindweed Turret Bee
Diadasia bituberculata - Bindweed Turret Bee
Habropoda tristissima - no common name
Habropoda tristissima - no common name

Diet: Generalist

Sociality: Social, living in annual colonies

Size: 8-21 mm long, depending on caste
Nesting strategy:
Underground cavities, often abandoned rodent burrows

Pollen transport: On the hind legs in “pollen baskets” (corbicula)

Range: Western North America, especially in California, Oregon, and Washington

Diet: Specialist on cactus flowers

Sociality: Solitary, often nesting in dense aggregations

Size: 10-15 mm
Nesting strategy:
Underground burrows with soil chimneys

Pollen transport: On the hind legs

Range: Western North America wherever their host plant cactus (Opuntia, Cylindropuntia spp.) occurs

Diet: Specialist on bindweeds and morning glories (Convolvulaceae)

Sociality: Solitary, often nesting in aggregations

Size: 10-15 mm
Nesting strategy:
Underground burrows with soil chimneys

Pollen transport: On the hind legs

Range: Western North America, mostly restricted to California

Diet: Generalist, favoring spring wildflowers

Sociality: Solitary
Size: 10-21 mm

Nesting strategy: Underground burrows

Pollen transport: On the hind legs

Range: Western North America, especially in California

Xylocopa sonorina -Valley Carpenter Bee
Xylocopa sonorina -Valley Carpenter Bee
Xylocopa tabaniformis ssp. orpiflex - Foothill Carpenter Bee
Xylocopa tabaniformis ssp. orpiflex - Foothill Carpenter Bee

Diet: Generalist

Sociality: Quasi-social, meaning there is parental care and overlapping generations in a nest, with reproductive division of labor, but not formalized castes like honey bees.

Nesting strategy: Tunnels excavated in wood

Pollen transport: On the hind legs

Range: Across the desert southwest, and introduced to the Pacific Islands and tropical regions

Diet: Generalist
Sociality:
Quasi-social, meaning there is parental care and overlapping generations in a nest, with reproductive division of labor, but not formalized castes like honey bees.
Nesting strategy:
Tunnels excavated in dead wood
Pollen transport:
On the hind legs
Range:
Western North America, especially Oregon, California, and Baja California

Bee Family: Halictidae

Agapostemon subtilior - Fine Striped Sweat Bee
Augochlorella pomoniella - Peridot Sweat Bee
Augochlorella pomoniella - Peridot Sweat Bee

Diet: Generalist

Sociality: Solitary, sometimes nesting in large aggregations–like a single apartment in an apartment complex!

Size: ~10 mm long
Nesting strategy:
Underground burrows

Pollen transport: On the hind legs

Range: Widespread across western North America

Diet: Generalist
Sociality: Flexible eusocial
Size: 7-9 mm long
Nesting strategy: Underground burrows
Pollen transport: On hind legs
Range: Common in western North America

Bee Family: Megachilidae

Anthidium maculosum - Spotted Woolcarder Bee
Megachile fidelis - Horn-faced Leafcutter Bee
Megachile fidelis - Horn-faced Leafcutter Bee
Megachile montivaga - Silver-tailed Petalcutter
Megachile montivaga - Silver-tailed Petalcutter

Diet: Generalist, though floral records suggest that they have a slight preference for flowers in the legume family, such as the genus Lotus (Acmispon).
Sociality:
Solitary
Size: 8-13 mm
Nesting strategy:
Build nests out of plant resin and other gathered materials
Pollen transport: On the underside of the abdomen
Range:
Widespread across western North America

Diet: Generalist, but often found on sunflowers (Helianthus spp.)
Sociality:
Solitary
Size: 11-13 mm
Nesting strategy:
Renters in pre-existing cavities
Pollen transport: On the underside of the abdomen
Range:
Western North America

Diet: Generalist
Sociality:
Solitary
Size: 11-13 mm
Nesting strategy:
Renters in pre-existing cavities or underground in soil
Pollen transport: On the underside of the abdomen
Range:
Widespread across North America