F. C. Bisiiopp and H. P. Wood 
187 
Figs. 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Fig. 9. 
Fig. 10. 
Fig. 11. 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
PLATE XJ. 
1-11. Dermacentor albipictus. (Photographs Figs. 1-6 by G. N. Wolcott, 
Figs. 7-11 by H. P. Wood.) 
Unengorged female, dorsal view. 
Unengorged female, ventral view. 
Male, dorsal view. 
Male, ventral view. 
Engorged female, dorsal view. 
Engorged female, ventral view. 
Unengorged larva, dorsal view. 
Engorged nymph, dorsal view. 
Engorged larva, dorsal view. 
Engorged nymph, ventral view. 
Unengorged larva, ventral view. 
PLATE XII. 
Figs. 1-8. Dermacentor nigrolineatus. (Photographs by H. P. Wood.) 
Unengorged larva, dorsal view. 
Unengorged larva, ventral view. 
Unengorged female, ventral view. 
Unengorged female, dorsal view. 
Male, dorsal view. 
Male, ventral view. 
Engorged female (small individual), ventral view. 
Engorged female (small individual), dorsal view. 
