124 B. MOISEE — DESCRIPTION OF HAUNTS OF GLOSSINA 



along the course of the valley numerous giginia palms occur. Game is said to be 

 plentiful in the vicinity all the year round, though we actually saw very few 

 tracks, but baboons were abundant. During the dry season, when the river is 

 almost entirely dry, the flies are said to be scarce. I was informed by several 

 natives that at that season, the flies go into the bush to the south-east, 

 apparently some considerable distance away, to places where water exists 

 all througli the dry season. 



Having arrived at Wajerou, a small village standing some 500 or 600 yards 

 from the river, a little way back from the ironstone bluff, which here Ijorders the 

 valley, we looked about the village for tsetse-flies, but saw none. The river then 

 had about three or four feet of water in it, and flowed quickly in a well-defined 

 channel about 10 yards wide, with muddy banks, and with here and there some 

 igneous rocks and a little sand and clay. Descending to the river-bed, we walked 

 slowly along, but did not see any flies until we passed close to a low leafy bush, 

 shown in one of the photographs (fig. 3), when a large number of flies suddenly 

 appeared and fed voraciously on the men, settling on their ankles and legs. 



Fig. 5. — Hawal River, at Gellen, near Wajerou. 



The flies did not seem inclined to travel far from the bush. Those men 

 standing close to it had as many as five or six flies on them at one time, while 

 men standing a few yards away were quite unmolested, and if nobody stood near 

 the bush hardly any flies appeared. On shaking the bush, large numbers of flies 

 came out, and after feeding, quickly retired once more to the shelter of the bush. 

 Again we failed to observe a single fly actually at rest on the bush, and we were 

 also unsuccessful in our search for pupse in the moist soil around. 



