situations or with cattle movements, as far north as Port Sudan, 

 which is at almost 20°N. latitude. Small popvilations also exist 

 in more humid riverside garden areas in and around Khartoum. 



DISTRIBUTION 



The blue tick is distributed throughout most of the Ethiopian 

 Faunal Region, barring the northern and southern periphery of this 

 region on continental Africa. Within its range, B. de color atus 

 occurs widely everywhere except in more open, dry^areas, and in 

 tropical forests. It is usually common where a fair degree of 

 shade and humidity is present. Outlying specimens have been re- 

 ported from other continents but whether these are from imported 

 hosts or from established populations is not clear. 



NORTH ATLANTIC OCEAN ; CAPE VERDE ISLANDS (Howard 1908. Bacelar 



1950 j: 



WEST AFRICA ; NIGERIA (Sin?)son 1912B. Unsworth 19^9,1952. 

 Mettam 1951. Gambles 1951). GOLD COAST (Simpson 19U. Beal 1920. 

 Stewart 1933, 193A. Minning 193/!^). FRENCH WEST AFRICA (Minning 

 193-^. Rousselot 1951,1953B. Villiers 1955). LIBERIA (Minning 

 1934) . PORTUGESE GUINEA (Monteiro da Costa 1926. Tendeiro 1946A, 

 B, 19/^8, 1951C,1952A,C,D,E, 1953, 1954. Bacelar 1950). SIERRA LEONE 

 (Hoogstraal 195AC). 



CENTRAL AFRICA ; CAMEROONS (Ziemann 1912A. Minning 1934. 

 Rageau 1951,1953A,B. Rousselot 1951,1953B. Unsworth 1952. Dezest 

 1953). FRENCH EQUATORIAL AFRICA (Minning 1934. Fiasson 1943B. 

 Rousselot 1951,1953A,B). 



BELGIAN CONGO and RUANDA-URUNDI (Newstead, Dutton and Todd 

 1907. As 3. capensis ; Massey 1908. Roubaud and Van Saceghem 1916. 

 Nuttall and Warburton 1916. Seydel 1925. Schwetz 1927A,B,C,1932, 

 19338,1934. Schouteden 1929. Bequaert 1930A,B,1931. Minning 1934. 

 Van Slype and Bouvier 1936. Bouvier 1945. Fain 1949. Schoenaers 

 1951A,B. Rousselot 1951,1953B. Theiler and Robinson 1954. Santos 

 Dias 1954D. Van Vaerenbergh 1954). 



EAST AFRICA ; SUDAN (Balfour 1911F incorrectly stated that B. 

 decolor atus does' not occur in the Sudan. King 1908,1911,1926. 

 Hoogstraal 1954B,C ) . 



- 308 - 



