0. peringueyi Bedford and Hewitt, 1925 j scanty descriptions and 

 " illustrations of male, female, and nymph from South Africa, 

 Cliff swallow as host (Bedford 1929A,1932A). Failure to 

 transmit Aegyptianella pullorum (Bedford and Coles 1933 )• 

 All stages redescribed and reillustrated (Bedford 1934). 



0. seilaM. HoogstrsAl, 1953(B); a pareisite of fruit bats in the 

 ~ Nile Valley and Wadi Natroun (Western Desert) of Egypt; 

 also known from Palestine; all stages described; life 

 history. Absence of spirochetes (Davis and Hoogstraal 1954). 



0, tholozani tholozani Laboulbene and Megnin, 1882(A); first des- 

 " cribed from Iran, An important Asiatic vector of spirochetes 

 of relapsing fever; the tholozani group consists of several 

 subspecies and related species; reviewed by Desportes and 

 Campana (19A6), Rare in western Egypt and eastern Libya 

 (Coghill, Lawrence, and Ballentine 19A7; Hoogstraal 1953C ) 

 but accused of transmitting spirochetes causing disease in 

 troops. Now known from several restricted, but large, 

 spirochete-infected populations in Egypt (Davis and Hoog- 

 straal 1956) and from Jordan (Babudieri 1954,1955). 



0, zumpti Heisch and Guggisberg, 1953(B); female and nymph des- 

 "" cribed from burrow of rodent (Rhabdomys pxmilio ) in Cape 

 Province, South Africa. Onderstepoort collection material 

 recently sent by Dr. Theiler for identification includes 

 males, females, and nymphs from the nests of Aethomys and 

 ? Tatera in Cape Province, 



/~0, lahorensis Neumann, 1908, an Asiatic-Near Eastern species, 

 said by Franchini (1929B,1932B,1935) and Garibaldi (1935) 

 to occur in Libya; most probably does not extend its range 

 into North Africa, 7 



0. sp. nov.; an undescribed species closely related to 0. 



~ foleyi has recently been found in porcupine burrows near 

 Pretoria in the Union of South Africa (Theiler, corres- 

 pondence). 



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