Sudanese 
ticks 
2:20 KKPOKT <IX ECOXUMIC ENTOMOLIKIY 
V. At: A HINA 
Tu'KS 
l.viiihilic 
The following sjiecies of ticks occur in the Sudan :— 
A inhlijtninHii ind niicrcinii, taken in the Southern Sudan (Plate XXVI., tigs. 1, 2). 
A )iibl 1/(1111 iiui. van'f(/(i.f.ii.m,^* Falir., plentiful in the southern provinces on camels, cattle, 
horned game, etc. It is occasionally seen in Khartoum on animals brought from the south. 
IIi/(il(iiiiiiui. (i'(jiji>iii(iii , Linne, generally known as the camel tick, though it also infests 
horses, mules, cattle, horned game, etc. It will occasionally attack man (Plate XX\T., 
figs. ;s, 4). 
/)()(/p/n7».v (i.iistniliK,* chiefly on cattle. 
liln'plccjihdhin sdiK/iiiitoiit:, Latreille, common on dogs, camels, etc. 
Hhipicj-phdlKx piii/ctdti.tsidiiis, (ierstiicker, taken on cattle. 
Ilhiplce/ihdliis ererfsi, Neumann, usually found on mules. 
Uh.ipicepliiihia siiiiKu,* a cattle tick. 
^[a|•(J(lrtlpli.1 (intmltitiis, Sarg., var. dectilonita, Koch, taken in the Upper White Nile 
Province. .\ heifer suffering from a piroplasmosis, and brought to Khartoum from the 
American Mission Station on the Sobat, was infested with this tick. 
Argaa pcrsiciis, Fischer, common throughout the northern provinces on fowls, turkeys, 
ducks and geese. 
()niitli(i<liir(j!( s(iri'(jiii/i, Auduoin, found in the northern provinces, attacking man. 
< )r}u'tli(i(lur(}s iiie/jiiiiii., Ouges. 
Aponodi nKt Ueve* from re])tiles. 
Probably many other species occur in this country, especially in the southern provinces, 
where cattle and game abound. 
T H E F o w L T I c K 
Aidjas jicrs/Giis, Fischer 
Plate XXVI., fig. G 
The fowl tick, .l/v/fi.v pcrsIcKK, occurs generally throughout the northern parts of the 
Sudan. 
Ijike all the members of the family Anjasidte, to which it belongs, the fowl tick has no 
scutum on the dorsal surface, as have the common cattle ticks with which everyone is 
familiar. This absence of a scutum, together with its flattened appearance, cause many 
people to mistake it for some species of bedding— I'hiic.c. 
Ijifc-hiafdci/ and h(ildti<. — The eggs are deposited in crevices in the w’alls of fowl-houses> 
cracks in the ends of jJui'ches, and othei’ situations where the ticks are in the habit of 
hiding. The six-legged larva appears in about three w'eeks and at the first opjiortimity 
attaches itself to a fowl. favourite place is the under surface of the wung, where young 
ticks may frequently be found in clusters. In a few days the larva is engorged, so, leaving 
its host, it secretes itself in some convenient refuge wdiere it is sheltered from the light 
of day. 
Having digested its meal, shed its skin, and acquired another pair of legs, the young 
tick, now’ a nymph, comes forth under cover of darkness for a second feed. This time, 
■ Identified liy Pref. Nuttall as a variety between A. variajatiim and A. hrhn(;am. 
“ Collected by Dr. Wenyuu. 
