Bul. 106, Bureau of Entomology, U. S. Dept. of Agriculture. PLATE XIl. 
THE CAYENNE TICK, AMBLYOMMA CAJENNENSE, AND THE PACIFIC COAST TICK, 
DERMACENTOR OCCIDENTALIS. 
Amblyomma cajennense. Fig. 1.—Unengorged larva. Fig. 2.—Unengorged female. dorsal view. 
Fig. 3.—Male, dorsal view. Fig. 4.—Unengorged nymph (balsam mount). Fig. 5—Male, 
ventral view. Fig. 6.—Unengorged female, ventral view. Fig. 7.—Engorged female, dorsal 
view. Dermacentor occidentalis: Fig. 8 —Male, dorsal view. Fig. 9—Male, ventral view. 
Fig. 10.—Unengorged female, dorsal view. Fig. 11.—Unengorged female, ventral view. Fig. 
12.—Fully engorged female, dorsal view. (Original.) 
