from two warthogs, same locality as above, 7 J\me 1953, and 8 

 January 195^, collected by E. T. M. Reid and P. Blasdale. Nvi_ 

 merous other specimens collected in the same area in J\ily by the 

 same persons, but without host data. Icf, 2^0, recently nolted 

 clinging to grass (with Dermacentor rhinocennus ), 25 miles west 

 of Yirol, 23 November 195A-, E. T. M. Reid legit . ICdt? and 2295 

 (some of which intergrade with R. simus simus j (cf. IDENTIFICATION 

 below), from elephant near Keni*sa, May 1953, E. T. M. Reid legit . 

 Sudan Government collections contain other Kenisa area specimens 

 from elephants, collected in 1911, which show similar intergrada- 

 tion with R. 3. simus (cf. RMARKS below). Mr. Reid has sent me 

 numerous specimens from three elephants shot near Yirol; these 

 are typical R. s. simus. 



DISTRIBUTION 



R. simus senegalensis is a West and Centred African tick 

 with scattered loci in more humid areas of East Africa as far 

 south as northern Nyasaland. 



WEST AFRICA ; NIGERIA (Unsworth 1952. As R. simus ; Simpson 

 1912A, p. 325; det. by Nuttall and War burton as^R. simus falcatus ; 

 see p. . As R. simus longoides ; Unsworth 19^9, Mettam 1950, 



Gambles 1951). TRMT^TW^f MiCA (Koch 18U. Rousselot 1951, 

 1953B. As R. simus longoides ; Villiers 1955) • SI ffiRA LEONE, 

 IVORY COAST, GOLD COAST, TOCO (Zumpt 19A3A*). PCBTTJGESE GUINEA 

 (Tendeiro 1952B ,C, 1953, 1954) . 



CEOTRAL AFRICA ; CAKEEOONS (Zumpt 1943A*. Rageau 1951,1953A, 

 B). FRENCH EQUATORIAL AFRICA (Zumpt 1943A». Roiisselot 1951). 

 BELGIAN CONGO and RUANDA-URUNDI (?As R. simus shipleyi ; Bequaert 

 19308,1931. Zumpt 1943A*. Rousselot~1953B. Thaller and Robinson 

 1954. Van Vaerenbergh 1954. See HOSTS below) . 



EAST AFRICA ; SUDAN (in part as R. simus and as R. falcatus: 

 King 1926. Hoogstraal 1954B ,C ) . UGANDA and TANGANYIKA (Hoogstraal 

 1954c. J. B. Walker, unpublished; see HOSTS below). 



*A11 Zumpt (1943A) records are under R. simus longoides subsp. nov, 

 which Ziampt (1950A) later synonymized~under R. simus senegalensis . 



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