HYALCMMA EXCAVATUM Koch, 18U. 



(Figures 166 to 169) 



THE a^ALL HZALCMIA 



NOTE: Schulze and his co-workers employed the name H. savignyi 

 (Gervais ISiU-) for this tick, and following their iisual i^actice 

 appended a variety of subspecific names to it. References to H. 

 depressum , H. Ittsitanicum subspp., H. pusilltis subspp., and H."" 

 rhipicepKaloides also ^ply to H. excavatum . The name H. anatolicum , 

 as used by Riissian and French workers, applies to H. excavatimi . 

 For a list of synonyms, see Delpy (19A9B, pp. ^75^-3777^ 



Adler and FeldmanuMuhsam (19A-8) and Feldman-Muhsam, following 

 Schiilze*s lead, applied the name H. savignyi in stxidies of H. 

 excavatum . After examining Koch*^ type specimens, Feldman-Huhsam 

 C195AJ agreed with Delpy that H. excavatum is the proper name for 

 this tick. This is accepted as a final decision. 



DISTRIBUTION IN THE SUDAN 



H. excavatum is moderately common in northern Sudan and in 

 the northern parts of central Sudan. No records from Darfur Prov- 

 ince are available. The small hyalomma is generally considerably 

 less numerous in the Sudan than in Egypt. It shows a strong 

 predilection for horses, even in areas where other domestic 

 animals are present in large ninnbers. 



The following are data for material seen: 



Northern ; Shendi (bulls, donkeys, and horses; SVS) . Wadi 

 Haifa, Abu Hamed, Atbara, and Shendi (camels, cattle, horses, 

 donkeys, goats, and sheep; HH). 



Khartoum ; Khartoum, Omdurman, and Shambat (camels, horses, 

 donkeys, cattle, goats, sheep, and dogs, SVS; Gordon College 

 collection; HH) , 



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