8i 
The consensus of opinion throughout Rhodesia is that tsetse flies 
are steadily increasing in numbers, regions wliich only a few years 
ago were free being now heavily infested by species of the genus, 
i.c., with Glossina morsitans and possibly pallidipes. This increase 
cannot be ascribed to a corresponding increase in game, since large 
areas exist where game is practically absent and tsetse flies abound, 
while in other parts the reverse holds good. 
B. In the Nyassaland Protectorate. 
Glossina palpalis has not been found here, but other species arc 
known. Gl. fusca has been observed in the Karonga district, and 
again in the neighbourhood of Chiromo. Gl. pallidipes was found 
in the former area, and Gl. morsitans is present in various parts of 
the country. 
C. In the Katanga District of the Congo Free State. 
1. Glossina palpalis. From Dr. Massey we learn that this fly 
occurs on the West shore of Mweru; at the junction of the Dilukwe 
and Lufira rivers ; at Nkoni Hill on the Lufira ; on the Lukulegi river 
near the Congo-Zambesi watershed ; at Busanga, junction of the 
Lufupa and Lualaba (tin mines); on the South Kaluli, at the cut 
road crossing from Ruwe to Mazanguli’s; on the Lualaba, from the 
Kalenga Falls to Chisamba; on the Tnje river, running into Lake 
Kisale, 
2. Glossina morsitans. In the whole region bounded by the 
Lualaba and Lufira ; along the road from Kambove to Madona; in 
the neighbourhood of Busanga; on the Lubudi river, and at its 
junction with the Mkuleshi; on a line drawn from Ruwe to 
Kansanshi, in two places. 
The disease is endemic in this part of the Congo along the 
Lualaba, from its junction with the Lubudi to its point of exit from 
Lake Kisale, and on the I.ufira around the Government post of 
Kayumba and at its junction with the Dilukwe. Moreover, the whole 
of the Lufira from Kisale to Mwencla’s village, a short distance from 
the Nkoni Hill Mission and the local administrative post of Lukafu, 
is suspected. We have also mentioned above that imported cases of 
the disease were present at Nkoni Hill in September, 1906. 
