104 



CATTLE TICKS. 



is of a pale greenish or slaty grey colour, usually darker" 

 or more or less shaded with red towards the sides ; the 

 spots and markings are red-brown or pitchy black ; the 

 hinder margin is crenulate, and there is an impressed 

 submarginal line ; the sides are sparsely punctured, and 

 there are two small deep impressions in front ; the palpi 

 and legs are of a rust-red colour, the latter with a yellow 

 spot at the ends of the joints ; the length of the body is 

 6 millm." 



FIG. 32. Amllyomma hebraum, male, life-size and magnified ; outline 

 figure showing size of female, inflated. 



" In the female specimen" received (that is, the spe- 

 cimen sent by Mr. Bairstow under the name of the 

 Great Cattle Tick, of which the size is given in the 

 figure in outline E. A. 0.) "the body is enormously 

 distended, and now of a dark brown-red colour, with a 

 pale reddish grey spot in front ; the surface is finely 

 granulated, and when magnified is seen to be very finely 

 striated ; the legs are of the same colour, and marked 

 as in the male. The length of the body is 22 millm."* 

 0. E. J. 



* The above is given merely as a general description. Those who 

 desire a fuller description of Amblyomma hebrcBum (male), the Shell Tick 

 of Port Elizabeth, will find it in the ' Arachnidensystems ' of Koch, 

 above referred to. With regard to the female, or Great Cattle Tick, the 

 colour of the body cannot be given with precision, as in all probability it 

 alters after death and immersion in spirit. In his notes Mr. Bairstow 

 (casually) alludes to a great Cattle Tick, under the name of the " Blue 



