J. M.  Aldrich, ?Notes on the synonymy of Diptera?, Proceedings of the Entomological Society of Washington, vol. 30, pp. 142-145, 1928.

J. M.  Aldrich, ?Notes on the synonymy of Diptera, No. 4?, Proceedings of the Entomological Society of Washington, vol. 32, pp. 25-28, 1930.