When I assumed duty in the Nile Province of the Uganda Protectorate, it was known to me that Dr. Shircore had taken a tsetse-fly near Nimule, which he considered to be nearly allied to, but distinct from, G. palpalis. I had been asked to take an early opportunity of examining the haunt of these insects and capturing further specimens. On several occasions I therefore repaired to the site of Dr. Shircore's find, and along some two miles of the bank succeeded in taking a large number of Glossina. These did not appear to differ in any noticeable degree from those one had seen on Lake Victoria, or on the smaller rivers of this Province, and as Dr. Shircore had reported that he had frequently seen the fly in question with the larger palpalis, especially near Nimule, I came to the conclusion that I had been very unfortunate in not taking a single specimen.