46 BOARD OF AGRICULTURE. 
animal, they instantly leave the plant and quickly disperse 
over their host. They insert their glossoidsand mandibles into 
the skin, where they cling firmly by means of the numerous 
hooks, and live by sucking the blood. The abdomen soon be- 
comes very much swollen, and sometimes grows so large as to 
resemble a tumor. They attack various animals and even man, 
indiscriminately. In many parts of the Southern States the 
“‘ wood ticks ” are extremely troublesome to persons who have 
occasion to go into the forests, as well as to animals. The 
egos of Ixodes albipictus are laid in large masses, from the 
first of May until the last of June. arly in July the eggs 
hatch out simultaneously, “the shell opening like a clam.” 
The young when first hatched have six slender legs. 
Figure 41. Figure 42. 
’ Figure 44. Figure 43. 
The Cattle-tick (Ixodes bovis). Figure 41. 
This is a flattened, leathery, reddish, seed-like species, with 
an oblong-oval body. It sometimes grows to be nearly half 
an inch long. Jt infests cattle, and is very troublesome in the 
Western and Southern States, but is far less common in the 
North. It also attacks the horse and many other quadrupeds, 
as well as reptiles, including the rattle-snake. 
Figure 41.—Cattle-tick (Iaodes bovis Riley), enlarged. 
Figure 42 —Jzodes albiptctus Packard; six-legged young, much enlarged; d, 
foot with sucker. 
Figure 43.—Head of the same, more enlarged; a, glossoid; 6, mandibles ; ¢ 
maxillary palpi. 
Figure 44.—Adult of the same, gorged with blood, natural size. All from 
- Packard’s Guide. Digitized by Microsoft® 
