ORDER ACARINA 



33 



Fig. 9 





Fig. 10 



§ 



P^IG. ] 



Fig. 12 



Figs. 



Fig. 1.3 Fig. 14 



to 14. — The spotted fever tick (Dermacentor vcnustus and Derma- 



centor albipictuH). (Hunter and Bishopp.) 

 Fig. 9, adult spotted fever tick which has deposited eggs. Fig. 10, larva 

 of spotted fever tick. Fig. 11, engorged nymph of spotted fever tick. 

 Fig. 12, the same, ventral view. Fig. 13, adult male of Dermacentor nlhi- 

 piclus. Fig. 14, adult female of Dermacentor alhipicliis, unengorged. 

 3 



