TICKS 



PLATE IV 



Fig. 1. 



Fig. 2. 



Fig. 3. 



Fig. 4. 



Fig. 6. Fig. 7. 



Figs. 1-7. Ixodes ricinus. 

 Fig. 1. i dorsum, x 12. (Wheler, 1906, Fig. 16.) 

 Fig. 2. i venter (mounted specimen). (Original, E. G. Wheler, phot.) 

 Fig. 3. ? dorsum, x 12. (Wheler, 1906, Fig. 17.) 

 Fig. 4. ? venter, x 9. (Wheler, 1906, Fig. 11.) 

 Fig. 5. o dorsum, x 12. (Wheler, 1906, Fig. 18.) 

 Fig. 6. l dorsum, x 12. (Wheler, 1906, Fig. 19.) 



Fig. 7. ? with one t coupled and a second t "waiting his turn." (Wheler, 1906, Fig. 36.) 

 Reprinted (Fig. 2 excepted) from the original blocks illustrating the paper by 

 E. Q. Wheler, Journ. Agric. (Cambridge), Vol. i. 



