Parasimulium is a genus of black flies containing two subgenera and four species. They are found in western North America. Most species are rare, and some Canadian species are cave dwellers.
Species
* P. melanderi <small>Stone, 1963</small>
* P. crosskeyi <small>Peterson, 1977</small>
* P. furcatum <small>Malloch, 1914</small>
* P. stonei <small>Peterson, 1977</small>
Literature cited