Miner bees: Perdita salicis sublaeta

(Lepidoptera: Andrenidae: Panurginae: Perditini)

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

Perdita salicis sublaeta is a rare endemic bee with a restricted distribution and uncertain population status. It has been collected only at two locations on the southern side of the Columbia Gorge in Oregon.

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) salicis sublaeta Cockerell 1896

life history

The flight period of Perdita salicis sublaeta is June to July (Tepedino and Griswold, 1995). Like all members of the tribe Perditini, P. salicis sublaeta 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 assumed that P. salicis sublaeta, like other subspecies in the salicis complex, are dependent on willow (Salix sp.) flowers.

It has been recorded in one habitat type within the Columbia Basin, Agricultural.


Perdita salicis sublaeta has been collected only from two sites at Hood River and The Dalles, OR. 

threats and conservation needs
Threats are currently unknown.  Conservation efforts should ensure that suitable flowering plants persist and that appropriate nesting substrate remains.  

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.)


Shepherd, M. D. 2005. Species Profile: Perdita salicis sublaeta. 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.