and Viljoen 1929. P. J. du Toit 1931. Alexander 1931. Bedford 

 and Graf 1934,1935,1939. Pijper and Dau 1934. Cooley 1934. 

 Minning 1934. M.D. 1936. Pijper and Crocker 1938. Neitz and 

 du Toit 1938. J. H. S. Gear 1938. Mclntyre 1939. R. du Toit 

 1942B,C,1947A,B,1948. Cluver 1944. Theiler 1949A: important 

 biological survey. Meeser 1952. J. Gear 1954). 



On arsenic resistance and BHD control and resistance in 

 South~5frica ; du Toit, GraF7~anJ'Bekker 19717 Bekker 192^1944, 

 1945,1947,1953. '"Anxious* 1943. Bekker and Koch 1943. Dell 

 1943. Mullins 1944. Bagshawe-Smith 1944. Omer-Cooper and 

 Whitnall 1945. Whitnall and Fenwick 1945A,B. Whitnall and Brad- 

 ford 1945, 1947A,B, 1949. Bekker and Graf 1946. '"Agricola'* 1946. 

 Thorburn 1947,1952. Whitnall 1947. Cooper 1947,1953. Thorburn 

 1947. Whitnall, Bradford, McHardy, Whitehead, and Meerholz 1948, 

 1949A,B. Whitnall, Thorburn, Whitehead, McHardy, and Meerholz 

 1949. Bekker, Graf, Malan and Van der Merwe 1949. Daly 1950. 

 Whitnall, McHardy, Whitehead, and Meerholz 1951. Kruger 1951. 

 Fiedler 1952. Whitnall, Thorburn, McHardy, Whitehead, and 

 Meerholz 1952. Hitchcock 1953. Blomefield 1954. Busvine 1955. 

 Metcalf 1955. 



OUTLYING ISLANDS ; ZANZIBAR (Neave 1912. Aders 1917). 



MALAGASY GROUP: From present evidence, B. decolor at us is not 

 established in the Mada^ascan archipelago (Hoogstraal 1953E). 

 Neumann (1901) listed Madagascar and Mauritius. Buck (1935) listed 

 the former island, De Charraoy (1914,1915) and Moutia and Mamet 

 (1947) the latter, and Gillard (1949) mentioned Reunion. Minning 

 (1934) referred Nevimann^s material to B. micro plus (s B. fallax ). 

 Buck (1948A,C) reports that P. decoloratus has never been foiind 

 on Madagascar or on other islands in this group. 



NOTE: Specimens of B. decoloratus from North Syria, West 

 Kurdestan, and Buenos Air'es (South America) have been noted (Minning 

 1934), but without mention of whether populations are maintaining 

 themselves in any of these localities. The blue tick is sometimes 

 found on cattle from the Sudan and East Africa at the Cairo abattoir. 

 This species has never been found on native cattle in Egypt. 



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