Miner bees: Protodufourea wasbaueri

(Hymenoptera: [Apoidea:] Halictidae: Rophitinae)

Profile prepared by Matthew Shepherd, The Xerces Society for Invertebrate Conservation

Protodufourea wasbaueri is restricted to chaparral and arid scrub areas in southern California and Arizona. Little is known of the life history of this bee. Its habitat is chaparral and desert scrub. It is a specialist forager for pollen on whisperingbells (Emmenanthe sp.), a plant that blooms in profusion soon after fires but then gradually declines as the other vegetation regrows. This bee is, thus, usually only found in the first year or two after a fire and is reliant on a continuing cycles of fires. It nests in the ground.

red list profile

conservation status

Xerces Red List Status: Data Deficient
Other Rankings:

Canada – Species at Risk Act: N/A
Canada – provincial status: N/A
Mexico: N/A
USA – Endangered Species Act: None
USA – state status: None
NatureServe: N/A
IUCN Red List: N/A

description

Bees in the genus Protodufourea superficially resemble bees in the genus Dufourea. They are between 5.5 and 7.0 mm long and nonmetallic. They have a robust body and there wings have three submarginal cells.

taxonomic status

Protodufourea wasbaueri Timberlake, 1955.

life history

Little is known of the life history of this bee. Its habitat is chaparral and desert scrub. It is a specialist forager for pollen (oligolectic) on whisperingbells (Emmenanthe sp.), a plant that blooms in profusion soon after fires but then gradually declines as the other vegetation regrows. This bee is, thus, usually only found in the first year or two after a fire. It nests in the ground.

distribution

Protodufourea wasbaueri is restricted to chaparral and arid scrub areas in southern California and Arizona.

threats

Threats to this species have not yet been documented, although the general move towards fire suppression is likely to have impacted it by not allowing its major hostplant to flourish. There is also increasing pressure from development and recreation in the region where it lives.

references

Michener, C. D. 2000. The Bees of the World. Baltimore, MD: Johns Hopkins University Press.

citation

Shepherd, M. D. 2005. Species Profile: Protodufourea wasbaueri. In Shepherd, M. D., D. M. Vaughan, and S. H. Black (Eds). Red List of Pollinator Insects of North America. CD-ROM Version 1 (May 2005). Portland, OR: The Xerces Society for Invertebrate Conservation.

The Xerces Society • 628 NE Broadway Ste 200, Portland OR 97232 USA • tel 855.232.6639 • fax 503.233.6794 • info@xerces.org
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