Kansas IInifersity Science Bulletin. Vol. Ill, No. 6. OCTOBER, 1905. IJo^^Muf^Sl^l I DIPTERA AFRICANA, I. BY C. F. ADAMS. N my " Dipterological Contributions" (K. U. Science Bulle-tin, vol. II, No. 2, p. 21, 1903), I mentioned this material and described seven new species from it. I also promised at that time to give the whole collection some study and finally report thereon. It is now my pleasure to offer this paper as the first part of the work. The second part will be on the Muscidse Calyptratse,* which are now in my hands for study. This represents all of the material which is mounted, there be-ing a large quantity still unmounted, mostly the minute forms. I hope to have the pleasure some time of working up this un-mounted material and offering it as a third part of this series. I am fully aware of the difficulties met with and of the careful-ness to be exercised in undertaking a work of this kind. It is no easy task to work successfully in one's own fauna, and there-fore it is with some timidity that I offer this contribution on exotic material. But I have done my best to free it of errors, and if any are found herein, I beg kind indulgence or favor at the hands of my confreres. As stated in the above-mentioned paper, this material was collected near Salisbury, Rhodesia, South Africa. The mate-rial, not only of the Diptera but of all the orders, shows that my friend Mr. Frank L. Snow is a diligent collector, and the Kansas University is fortunate in receiving the results of his trip to Africa. In due respect to his generosity, I name one of the species in his honor. * Since this was written conditions have changed. Some of the manuscript intended for the second part is included in this paper. (U9)