O. A.  Johannsen, ?Order Diptera?, in List of the insects of New York with a list of the spiders and certain other allied groups, M. D.  Leonard, Ed. 1928, pp. 687-869.

F. R.  Cole, ?Milichiidae?, in The flies of Western North America, F. R.  Cole and Schlinger, E., Eds. Berkeley & Los Angeles: University of California Press, 1969, pp. 387-390.