1900.] IXSECTS AND AliACUNlDS FROM SOMALILWD. 49 



Class AEACHXIDA. 



Order Acari. 

 Family Trombidiid.J!:. 

 Genus Trombidium. 

 Trombjdium TiNCTORiUM (Linn.), Trouess. 



Tromhidium finctoriuin, Trouessart, Ann. Soc. Ent. Fniuce, L894, 

 pp. 89-91 & 94, lig. a. 



Loc. Hargaisa in North-west Somaliland (April 25-28, 1895). 

 Two specimens in the Hope Museum at Oxford. 



Family Argasid.e. 

 Genus Ornithodoros Koch. 

 Ornithodoros savignti (Aud.). 



Ar(/as savigni/i, And., Description de I'Egypte, Hist. Nat. i. 

 pi. iv. fig. 5 ; Explanation of Plates, p. 183 (1827). 



Ornithodoros savignyi, Neumann, Mem. Soc. Zool. France, x. 

 p. 26 (1897). 



Loc. Bularli in West Somaliland (May 1895). Six specimens, 

 two in the British Museum, the rest in the Hope Museum at 

 Oxford. 



Family Ixodid.*. 



Genus Hyalomma C. Koch. 



Htalomma GROsstTM C. Koch. 



Hyalomma grossum, C. Koch, Arch. Natur. x. i. p. 220, no. 2, 

 Uebersicht etc. iv. p. 34, pi. ii. fig. 8 (1847). 



Loc. Bularli in West Somaliland (May 1895). 



A single distended female, probably referable to this species ; in 

 the Hope Museum at Oxford. 



Genus Ehipicephalus C, Koch. 

 Ehipicephalus sanguineus (Latr.). 



Lvodes sanguineus, Latreille, Hist. Nat. Crust. Ins. i. p. 157 

 (1804). 



BJiipicephalus sanguineus (Latr.), Neumann, Mem. Soc. Zool. 

 France, x, p. 385 (1897). 



Loc. Bularli in West Somaliland (May 1895). 



Three specimens, one in the British Museum and two in the 

 Hope Museum at Oxford. 



Proc. Zool. Soc— 1900, No. IV. 4 



[47] 



