200 JAS, J. SIMPSON—ENTOMOLOGICAL 
complained most bitterly of a great loss of cattle during the past two years, and 
his description of the disease was extremely suggestive of trypanosomiasis. When 
questioned about tsetse, he denied their occurrence actually in Farafeni, but 
stated that they were to be found at Beretto towards the end of the rains, which 
is not at all improbable. 
The road from Farafeni to Ballangar passes through Sukotto, Kattaba, Dipa- 
kunda, M’Palen, and N’Geyen Sanjal. Between Kattaba and Dipakunda 
several tsetses (? G. morsitans) alighted on my pony’s neck. The bush in this 
part is exactly the same as that between Yalloll and Fula Farafeni. In the 
camp at Dipakunda, a tsetse, almost certainly G. morsitans, settled on my arm, 
but unfortunately I did not manage to secure it. Tabanus taeniola also exists 
here, and one 7’, ditaeniatus was seen; one flea (Ctenocephalus felis) was obtained. 
Between Dipakunda and Ballangar lies N’Geyen Sanjal. The road runs 
through thin bush and over two iron-stone ridges. About a mile from N’Geyen 
Sanjal there is a gully, which obviously contains water in the wet season, while 
about three miles further on there is, surrounded by a laterite ridge, a swamp 
(dry when visited on March 13th), which must also be covered with water during 
the rains. At Ballangar a specimen of Tabanus ditaeniatus was caught on the 
pony at noon, and at 6 p.m. a tsetse, almost certainly Glossina morsitans, alighted 
on the writer’s leg in camp. The Ballangar wharf is about three miles from the 
native town and is connected with it by thin bush; it is a very important loading 
place for ground nuts, and several Kuropean merchants are stationed here in the 
dry season. The clearing is quite inadequate and Glossina palpalis is frequently 
met with. From Ballangar wharf to Kauur, the country was one large dry 
swamp, which must be practically impassable in the rainy season. In the dry 
season the mud is baked hard and cracked, and consequently one would not 
expect to find tsetse at this season of the year, but, in the wet season, it is 
extremely probable that G. palpalis is to be found the whole way between the 
two wharves. Jauur wharf lies about two miles from the native town ; there is 
little or no clearing, and the jetties are simply built out into the river and are 
fringed on both sides by mangroves. I took the opportunity of going out on the 
river in a rowing boat, but although several G. palpalis and T’ taeniola were flying 
around, I was unable to secure specimens. One of the French traders here told 
me that tsetse were very troublesome when the natives were loading, and that 
they even invaded the European houses nearly half a mile from the river bank. 
Leaving Kauur, the road passes through thin bush the whole way to N’Jau. 
Not far from N’Jau is the small town of Bulghurk, and here one Glossina 
morsitans was seen on the pony’s neck. From Bulghurk to N’Jau, the road runs 
practically along the French boundary. At N’Jau Tabanus taeniola was caught 
on the pony’s neck at 4.30 p.m., while at 6.15 p.m. Glossina morsitans was captured 
biting the writer’s arm in camp. 
Between N’Jau and Tento there are a number of small villages, notably Leba, 
Amodi, Panchang, and Porli. Leba is about 1} miles from the Nianija Bolon, 
one of the largest creeks on the north bank of the River Gambia. From Leba 
to Tento, the road runs nearly parallel with the creek at distances varying from 
14 to 2 miles from it, while immediately after Panchang a small dry water course 
