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CAMELS are heavily infested by O. savignyi at Wad Medani and Kosti. Material from Wad Raiya has also been seen. This tampan probably occurs in most areas where camels are employed. A• lepidum is also common but specimens of H. dromedarii are res# cted to the northern half of the Province as are those of H. excavatum. H. rufipes and R. s. sanguineus are represented by TingTETCôllections # H. truncatum by scattered collections. R. e. evertsi, although common on equines, goats, and sheep, is not present in collections from camels.

HORSES, DONKEYS, and MULES throughout Blue Nile are frequently parasitized by R. #. evertsi and to a lesser extent by R. s. # A. lepidum is not uncommon on these hosts.

Numerous :* excavatum occur on some horses at Wad Medani.
DOGS bear numerous R. .S. sanguinellS •

CATTLE are localized in Blue Nile Province. Large areas, although apparently suitable for grazing and close to markets and transportation, support little livestock. In cultivated areas some work animals are employed. In Kosti District, the Baggara tribes do, however, maintain large herds of cattle, goats, and sheep, and migrate with them to northern Kordofan or down to Er Renk in search of grazing. Other pastoral tribes inhabit the area between the Blue Nile and Kassala.

Herds are commonly parasitized by A. lepidum and, at Wad Medani, by H. rufipes. B. decoloratus, A. Variegatum, and R. s. simus are represented by Single collections from the southern Thalf of the Province, while H. excavatum and H. dromedarii infest cattle in the northern half. H. truncatum is present in scattered localities.

GOATS and SHEEP are hosts of R. e. evertsi and R. s.

sanguineus. Comparatively heavy infestations of either or both of these species are common in most areas of Blue Nile Province.


Grading from a small area of acacia tall-grass forest in the extreme south to large wastes of barren desert in the north, Kassala, by reason of its hilly character and humid sea breezes, undoubtedly supports a number of tick species not yet recorded from this Province. A few miles north of Kassala Province, in Egypt, we have found Ornithodoros foleyi, and H. truncatum follows the coastal plain to its northern Timit just inside Egypt. Excellent riding camels are a notable product of Kassala and camels and goats are common throughout the Province except in the inland deserts. Cattle herds range from the south to somewhat north of Port Sudan and sheep are common in the same area except in the far south.


The presence of A. b ti at Erkowit indicates parasitism of reptiles and small .# A. exornatum has been taken from a Varanus LIZARD in the Butana area. A HARE at Sinkat was in

fested by R. s. sanguineus. MAN

O. savignyi has been taken feeding on human beings, near a well, and in several other situations (page 191).

A. persicus has been found at Suakin.
CAMELS at Kassala are infested by numerous H. dromedarii

and fewer numbers of H. excavatum, H. marginatum, H: FITIEEE and R. s. sanguineus." O. savignyi is also present"(page T91).

*Dry and early rainy season data for livestock parasites from several localities were provided by Mr, M. J. Henigan of the Sudan Veterinary Service. Sudan Government, British Museum (Natural History), and the HH collections have added a few additional records.

DOGS at all localities surveyed are heavily infested by R. S. San eus. In May at Port Sudan, 44 nymphs of this tick " and a few adult H. l. leachii were also taken.

HORSES and DONKEYS are parasitized chiefly by H. excavatum and by fewer H. detritum, H. dromedarii, H. impeltatum, E. S.

evertsi, and R. S. Sangineus.

CATTLE bear chiefly H. dromedarii, H. excavatum, H. impel

tatum, H. rufipes, and H. truncatum, along with fewer R. repidum, H. detritum, #. e. Everts:

GOATS and SHEEP yield chiefly H. excavatum and R. s. sanguineus, and fewer H. truncatum and R. e. everts:



Khartoum Province, a small area around the capital, Khartoum, industrial town, Khartoum North, and residential and marketing center, Omdurman, is a region of poor grass acacia scrub with no special biological features except for small, irrigated gardens along the Nile. Large numbers of horses, donkeys, camels, sheep, and goats live here or come into the Province, and some cattle are maintained.

The presence of a zoological garden and of a cattle quarantine station brings many wild and domestic animals with a large variety of ticks into the Khartoum area and several exotic records for this locality appear to have been based on material of species not established in this Province.


King reared H. rufipes from nymphs from a KITE, Milvus migrans- Adults of it • S- Sanguineus were found on another kite.

*Khartoum data derive from the writer's collections, a few lots in Sudan Government collections, and four lots sent by Sudan Veterinary Service personnel.

BATS are parasitized by A. confusus and A. vespertilionis.

RODENTS in the desert often bear larvae and nymphs of Hyalomma ticks; immature tick specimens of this genus have not yet been identified. A FOX shot near Khartoum bore a number of H. l. leachii and another four male H. l. muhsami and several R. s. sanguin - -

• SãngllnellS-

A. Persicus is common in Khartoum and Omdurman.

CAMELS yield large numbers of H. excavatum, H. dromedarii
S. sanguineus, and smaller numbers of H. impeitatum and

H. rufipes. O. savignyi is common here.

DOGS bear R. s. # and less commonly H. l. leachii, H. dromedarii, R. Excavatum, and H. rufipes.

HORSES and DONKEYS are parasitized chiefly by H. excavatum but also bear good numbers of H. impeltatum, H. dromedarii, H. excavatum, H. rufipes, R. e. evertsi, and R. s. sanguineus and ETENTE-Tdecoloratus. Small populations of the TaSE name species appear to be established in irrigated gardens along the Nile.

CATTLE provide H. dromedarii, H. excavatum, and R. S.

sanguineus, and fewer H. imperiatum and H. rufipes.

SHEEP and GOATS are parasitized by the same species as cattle, except that R. e. evertsi is also common on them.


Small herds of domestic animals are maintained in the narrow strip of cultivation along the Nile. Away from the Nile, Northern Province is a vast barren desert that supports little life. The few available tick collections are from the Nile area. Xerophilic tick species undoubtedly remain to be discovered in the desert.


BATS at Dongola are infested by A. confusus and A. vespertilionis. FOXES in the desert near the Nile rarely bear R. S. Sims, more commonly H. l. leechii and E. s. sanguineus. The latter tick has also been found on HARES.. "


A. persicus occurs in a number of localities along the Nile.


CAMEL yards frequently contain O. Savignyi. H. dromedarii is the chief tick parasite of camels but H. Excavatum, H.

rufipes, and R. s. sanguineus also occur on them.
DOGS are infested by R. s. sanguineus and H. excavatum.

HORSES and DONKEYS bear H. excavatum and fewer H. dromedarii, H. rufipes, and R. s. sanguineus.

CATTLE yield H. dromedarii and H. excavatum; less commonly H. rufipes and R. S. sanguineus; rarely E. E. simus at Shendi.

SHEEP and GOATS harbor H. excavatum and R. S- sanguineus. At Shendi a few R. e. evertsi occur.

*Northern Province data were obtained by Sudan Veterinary Service personnel and the writer. A few lots from this Province are in Sudan Government collections.

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