Published online by Cambridge University Press: 31 May 2012
The genus Bolbomyia Loew, 1850, was erected on the basis of specimens in Austrian amber. No specific name was applied to the material. Bolbomyia nana Loew was described in 1862 from a single female collected at Washington, D.C., U.S.A. The species has since been redescribed twice, as Misgomyia obscura by Coquillett, and as Ptiolina mitis by Curran, on the basis of eastern North American material.
A second species has recently been collected in western North America, and it is the purpose of this paper to describe this new species and redescribe the genus.