F. R.  Cole and Lovett, A. L., ?An annotated list of the Diptera (Flies) of Oregon?, Proceedings of the California Academy of Sciences, vol. 11, pp. 197-344, 1921.

F. R.  Cole, ?Notes on the Diptera of Laguna Beach California?, Journal of Entomology and Zoology, vol. 1925, p. ?58, 1925.

F. R.  Cole, ?A study of the terminal abdominal structures of male Diptera (two-winged flies)?, Proceedings of the California Academy of Sciences, vol. 16, pp. 397-499, 1927.