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At-Risk Bees

A tiny yellow-faced bee foraging on 'Ohi'a lehua, a native pollinator plant, at Hawai'i Volcanoes National Park
Yellow-faced bee ( Hylaeus sp.) on 'Ohi'a lehua ( Metrosideros polymorpha). (Photo: Xerces Society / Matthew Shepherd)

Bees are undoubtedly the most abundant pollinators of flowering plants in our environment. The service that bees and other pollinators provide allows nearly 70% of all flowering plants to reproduce; the fruits and seeds from insect pollinated plants account for over 30% of the foods and beverages that humans consume.

Beyond agriculture, pollinators are keystone species in most terrestrial ecosystems. Fruits and seeds derived from insect pollination are a major part of the diet of approximately 25 percent of all birds, and of mammals ranging from red-backed voles to grizzly bears. However, many of our native bee pollinators are at risk, and the status of many more is unknown. Habitat loss, alteration, and fragmentation, pesticide use, and introduced diseases all contribute to declines of bees.

The Xerces Society is working to research and conserve these vital pollinators. Scroll down or use the search tools to view our profiles of at-risk bees.

 

Name search (partial name okay)
Epeoloides pilosula (Cresson 1878)
Cuckoo bees
USA: CT, GA, MD, MA, MI, MT, NJ, NY, NC, ND, OH, PA, VA, WV, WI
Canada: MB, ON, SK
Ashmeadiella sculleni
Leaf-cutter bees
USA: NV, OR
Eucera douglasiana
Long-horned bees
USA: WA
Eucera frater lata
Long-horned bees
USA: ID, OR, UT, WA
Canada: BC
Hoplitis producta subgracilis
Mason bees
USA: ID, NV, OR, WA
Canada: BC
Hoplitis orthognathus
Mason bees
USA: ID, NV, OR
Andrena aculeata
Mining bees
USA: ID, OR, WA
Canada: AB, BC
Andrena winnemuccana
Mining bees
USA: OR
Calliopsis barri
Mining bees
USA: ID, OR
Halictus harmonius
Sweat bees
USA: CA
Halictus pinguismentus
Sweat bees
Hesperapis kayella
Western bees
USA: ID, NV
Hylaeus akoko
Yellow faced bees
USA: HI
Hylaeus anomalus
Yellow faced bees
USA: HI
Hylaeus anthracinus
Yellow faced bees
USA: HI
Hylaeus assimulans
Yellow faced bees
USA: HI
Hylaeus dimidiatus
Yellow faced bees
USA: HI
Hylaeus facilis
Yellow faced bees
USA: HI
Hylaeus finitimus
Yellow faced bees
USA: HI
Hylaeus flavifrons
Yellow faced bees
USA: HI
Hylaeus gliddenae
Yellow faced bees
USA: HI
Hylaeus hilaris
Yellow faced bees
USA: HI
Hylaeus hula
Yellow faced bees
USA: HI
Hylaeus kona
Yellow faced bees
USA: HI
Hylaeus kuakea
Yellow faced bees
USA: HI