Plate VI. 



Fig-. 1 — Aiiiblyoiiima Amerifa- 

 iiiini. 



(Ovipositing). 



Note Avhite spot in dorsal 

 shield. 



% 



Fig. 2 — BcoiihiliiK Auuulatiis. 



(Ovipositing-). 



Note skrinking- of theboclx- 

 posteriorly. 



Fis. 3 — Boophilus Annulatsis. 



(In different stages of de- 

 velopment on skin of cow). 



Fig. 4— Sarcoptic scabies, cat. 



