Plate IVa. 



Fig:. 1— ^Boopliiliis Aiiiiiilatus. 



(Eng-org-ed females). 

 A — ^^Ven'.ral view. 

 B — Dorsal view of same, 



1, Anus. 



2, Lateral constrictions. 



3, Rudimentary dorsal shield. 



4, Short rostrum. 



5, Longitudinal dorsal depres- 



sions. 



6, Legs. 



7, Stigmen. 



Figr. 2 — Amblyomma Ameri- 

 eauuiii. 



(Engorged female). 

 A — Dorsal view. 

 B — Ventral view. 



1, Anus. 



2, Well developed dorsal 



shield, showing white 

 spot. 

 .3, Rostrum. 



4, Longitudinal depressions 



5, Stigmen. 



6, Legs. 



Pig,. 3— Oriiithodoros 3Iegnsiii. 



(Engorged females). 

 A — Dorsal view. 

 B — Ventral view. 



a, R'istrtim, 



b, Legs. 



c, Body tapering posteriorly. 



