mally hide in crevices but do not burrow in ssind or soil, OrnL- 

 thodoros ticks, on the other hand, usually parasitize mammals, 

 although exceptions are known, and unless the soil is too hard, 

 they normally burrow below the surface or at least hide in cracks 

 in soil. It is, therefore, of interest that larval A, bmmpti 

 feed, apparently more or less indiscriminately, on reptiles, 

 birds, and mammals, and that nymphs and adults attack either liz- 

 ards or mammals, A further interesting observation, from both 

 Dr. G, E. Davis' and our laboratories, is that the various stages 

 of this tick feed fully on white mice, whereas most other Argas 

 species feed only partially on mice, When resting, A, bruir.pt i 

 apparently prefers to burrow in soil or sajid, but if"~this is not 

 possible it hides among surface debris or between or under rocks. 



King (1926) mentioned the possibility that Brumpt*s argas 

 might infest human dwellings although actual records had not been 

 obtained, Archibald (1923; reported Brumpt's argas among a col- 

 lection from in and around human dwellings, but he did not spec- 

 ify exactly in which situation specimens were taken, Archibald's 

 records and specimens caxmot now be located. Walton (195OB) 

 states that in Kenya this species does not occur in hviman huts. 



DISEASE RELATIONS 



MAN: Bites of A, brumpti may be quite painful to hixman beings 

 and cause itching la'sting for years, Kenya natives claim that this 

 tick causes pain and sickness when it bites man, 



LIZARDS: In Kenya and in Egypt, A. brumpti and lizards have 

 been found infested with a hemogregarine , Hepatozoon argantis 

 Garnham, 1954-, 



HYRAXES: This tick should be considered as a potential vector 

 of the piro plasm Echinozoon hoogstraali Garnham, 1951, a parasite 

 of Heterohyrax brucei hoogstraali. 



REMARKS 



The diagnostic characters listed below comprise the criteria 

 for Pospelova-Shtrom's (19A.6) genus Ogadenus , herein considered 

 as a subgenus of Argas , Warb\arton's V1933J views on the generic 

 position of A, brumpti will be reviewed in subsequent studies of 

 the genus, ~ 



_ 88 - 



