J. O.  Westwood, ?Observations on the destructive species of dipterous insects known in Africa under the names of the tsetse, zimb and tsaltsalya, and on their supposed connexion with the fourth plague of Eygpt?, Proc. Zool. Soc. Lond., vol. 18 (1850), pp. 258?270, 1851.

J. O.  Westwood, ?Diptera?, in Synopsis of the genera of British insects, in his: An Introduction to the modern classification of insects, 1840, pp. 125-158.