SUPPLEMENTARY NOTES ON THE TSETSE-FLIES 
species is responsible for the dissemination of a form of trypanosomiasis among camels 
and mules, which is probably identical with nagana, and, like the fly itself, is known 
to the Ogaden Somalis by the name ' aino.' 
The other species of Glossina considered by Brumpt to be carriers of Trypanosoma 
brucei in the case of domestic animals were referred to at the commencement of this 
paper, and it may be pointed out in conclusion that this author believes 10 that, in 
addition to trypanosomiasis in its various forms, Tsetse-flies must play an important 
part in the dissemination of other diseases due to haematozoa. Brumpt states that 
in certain districts on the Upper Congo a filariasis due to Filaria volvulus is very 
widely spread ; the disease occurs only among the canoe paddlers — that is, among those 
who are most exposed to the bites of Tsetse-flies. ' The only cases hitherto known,' 
writes Brumpt, 1 have been observed in the regions (such as Nigeria and Dahomey) 
in which Tsetse-flies abound. The lymphatic tumours caused by Filaria volvulus are 
met with, especially in the places towards which the lymphatics of the exposed regions 
converge.' 
Revised Synopsis of the Species of Glossina 
1. Hind tarsi entirely dark, or at least all the joints more or less dark (in the £ of Glossina 
tachinoides the basal half of the first joint and the extreme bases of the following joints are 
usually pale) ... ... ... ... ... ... ... ••• ••• ••■ ... 2 
Hind tarsi not entirely dark ; last two joints alone dark, remainder pale .. ... ... 4. 
2. Ground colour of abdomen ochraceous-bufF, with interrupted dark-brown deep transverse 
bands, and sharply-defined pale hind borders to the segments ; a very conspicuous square 
or oblong pale area in the centre of the second segment ; small species, not exceeding 
8 mm. in length (exclusive of proboscis), the males considerably smaller ... tachinoides, Westw. 
Abdomen not so marked, very dark or for the most part uniformly brown, hind borders 
of segments if lighter extremely narrow and cinereous ; pale area in centre of second 
segment usually triangular, with the apex directed backwards and continued into a 
cinereous median stripe ; larger species ... ... ... ... ... ... ... 3 
3. Third joint of antennae dusk}' brown to cinereous black ... ... ... palpalis, Rob.-Desv. 
Third joint of antennae pale (orange-buff) ... ... ... ... ... pallicera, Bigot. 
4.. Large species : length at least 1 I mm. (5 [ : lin.), wing expanse (measured from tip to tip, 
when wings are set at right angles to body) at least 25 mm. ( I I ^ lin.) ... ... ... 7 
Smaller species : Length rarely reaching I I mm. (5-]- lin.), often considerably less ; wing 
expanse not exceeding 25 mm (1 1 \ lin.). ... ... ... ... ... ... ... 5 
5. Last two joints of front and middle tarsi with sharply defined dark-brown or black tips ... 6 
Last two joints of front and middle tarsi without sharply defined dark-brown or black 
tips — front and middle tarsi entirely yellow, or last two joints of former faintly tipped 
with pale brown ... ... ... ... ... ... ... ... pallidipes, Austen. 
6. Generally distinctly larger ; head wider ; front darker and narrower in both sexes, sides 
parallel in $ ; abdominal bands deeper, leaving hind margins of segments only narrowly 
pale ; hypopygium in $ smaller, darker, and more hairy ; tip of $ abdomen more 
thickly clothed laterally with short black hair, bristles on sixth segment finer and less 
prominent ... ... ... ... ... ... ... ... ... hngipalpis, Wied. 
