Miner bees: Perdita wyomingensis sculleni

(Hymneoptera: [Apoidea:] Andrenidae: Panurginae: Perditini)

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

Perdita wyomingensis sculleni is endemic to the Columbia Basin but fairly widespread and relatively common within the Basin. The flight period of Perdita wyomingensis sculleni is June to July. It has been recorded in three habitat types within the Columbia Basin, Agricultural, Interior ponderosa pine, and Ponderosa pine- grassland.

red list profile

conservation status

Xerces Red List Status: Vulnerable
Other Rankings:

Canada – Species at Risk Act: N/A
Canada – provincial status: N/A
Mexico: N/A
USA – Endangered Species Act: N/A
USA – state status: N/A
NatureServe: N/A
IUCN Red List: N/A

A rare endemic species with a restricted distribution and uncertain population status.

taxonomic status

Perdita (Perdita) wyomingensis sculleni Cockerell, 1922.

life history

The flight period of Perdita wyomingensis sculleni is June to July (Tepedino and Griswold, 1995). Like all members of the tribe Perditini, P. wyomingensis sculleni nests in the ground. (Perdita nests differ from the majority of andrenid nests in that the cells are unlined or only partially lined.) Nearly all species of the tribe Perditini are specialist foragers. It is not known which plants P. wyomingensis sculleni forages at, but it may be mariposa lily (genus Calochortus).

It has been recorded in three habitat types within the Columbia Basin, Agricultural, Interior ponderosa pine, and Ponderosa pine-grassland.

distribution

Perdita wyomingensis sculleni is endemic to the Columbia Basin but fairly widespread and relatively common within the Basin.

threats and conservation needs

Threats to this species are currently unknown.

Conservation efforts should ensure that suitable flowering plants persist and that appropriate nesting substrate remains.

Little is known of the biology of this species. Studies of both the nesting and foraging habits would be valuable.

references

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

Tepedino, V.J., and T.L. Griswold. 1995. The bees of the Columbia Basin. Final report, USDA Forest Service, Portland, OR. 212 pp (Technical Report)

additional resources

California Academy of Sciences; Andrenidae Primary Types in CAS Collection (Accessed November 17th, 2004.)

Nomina Insecta Neartica (Accessed November 17th, 2004.)

citation

Shepherd, M. D. 2005. Species Profile: Perdita wyomingensis sculleni. 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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