A key to the Utah species of Bombylius is presented. Bombylius heximaculatus, nigriventris, montanus, abdominalis, aestivus, and auriferoides, new species, and lancifer kanabensis, subspecies new, are described from Utah. Bombylius lassenensis, new name, is proposed to replace the preoccupied B. pallescens Johnson and Maughan.
Johnson, D. Elmer and Johnson, Lucile Maughan
"Notes on the genus Bombylius Linnaeus in Utah, with key and descriptions of new species (Diptera: Bombyliidae),"
Great Basin Naturalist: Vol. 35
, Article 7.
Available at: http://scholarsarchive.byu.edu/gbn/vol35/iss4/7