Explanation of Names
Species epithet "nasuta" refers to the modified clypeus of the male, reminiscent of having a large, projecting "nose".
Males are distinct from all other Perdita species in the shape of its projecting clypeus, which somewhat resembles a cartoonish duck beak.
Primarily the American southwest and contiguous northern Mexico
Discover Life Global Mapper
Apparently an oligolege of Eriogonum
species. The Hosts section on its Discover Life species page
lists known floral associations based on specimen records and images.