MISCELIANEOUS: It has been clained that West African speci- 

 mens have been found infected with Q; fever (Coxiella burnetii). 

 In Egypt, the fowl argas is infected with one or more virtises 

 distinct from West Nile but otherwise unidentified. 



REMARKS 



An excellent and detailed study of the internal and external 

 morphology of A. persicus has been presented by Robinson and David- 

 son (l913A,B,l^Uil, and by Patton and Cragg (1913). An earlier 

 work is that of Heller (I858). Rohr (1909) reported on life cycle 

 and biological studies in Brazil, and included a few photomicro- 

 graphs of internal organs. Regeneration of broken appendages has 

 been reported by Hindle and Cunliffe (19U) and by Nuttall (1920B). 

 Sensory perceptions have been studied by Hindle and Merriman (1912), 

 The coxal cymatium of A. persicus has been discussed by Schulze 

 (1936a), who also (l9Al) described and illustrated the haller»s 

 organ, Micks (1951) gives an account of a convenient rearing 

 technique and life cycle observations and Sapre (1943) described 

 his method for laboratory rearing. Immunity of chickens to bites 

 of the fowl argas has been studied by Trager (19^0). Antlcoag\ilin 

 in the salivary glands and gut has been reported by Nuttall and 

 Strickland (1909) and by Cornwall and Patton (19U). The salivary 

 glands have been described and illustrated by Heller (I858) and 

 Elmassian (1910). 



Larvae of clothes moths, Tineola biselliella , have been ob- 

 served attacking living larvae of A. persicus in laboratory colo- 

 nies (Volimer 1931). ~ 



According to Zuelzer (1921), A. persicus and A. reflexus mate 

 and prodvjce fertile offspring. We~have been unabie to duplicate 

 these results in our Cairo laboratories. 



Observations on the bacteriostatic factors in blood-engorged 

 ticks, incliiding A. persicus (Anigstein, Whitney, and Micks 195QA, 

 B), prompted f urtEer studies showing that bacterial growth inhi- 

 bition in vitro is comparable with the phenomenon induced by anti- 

 biotic s"~XWHKney, Anigstein, and Micks 1950) and that a blood 

 hydrolysate called sanguinin is responsible (Micks, Whitney, and 

 Anigstein 1951). This subject is reviewed under 0. moubata (page 

 178). - "^^ 



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