Fio. 206 



PIG. 207 



FIG. 208 



FIG. 209 



FIG. 210 



FIGS. 204 to 210. Cattle ticks in various stages. Fig. 204. Full-grown female tick, engorged 

 and ready to drop to ground and deposit eggs. (Magnified 3 times.) Fig. 205. Tick laying eggs. 

 One tick may lay as many as 5000 eggs. (Magnified 3 times.) Fig. 206. Larva? or seed ticks 

 after emerging from eggs. (Magnified 9 times.) Fig. 207. Young ticks before (a) and after (6) 

 first molt. At this stage the ticks have attached themselves to a host (cow, steer, etc.), and 

 "have changed from a brown color to white. It will be noticed that the tick has six legs before 

 molting and eight afterward. (Magnified 9 times.) Fig. 208. Young tick nearly ready to 

 undergo the second molt. The tick at this stage is known as a nymph. (Magnified 6 times.) 

 Fig. 209. Male tick. (Magnified 6 times.) Fig. 210. Female tick after second molt. This tick 

 is now sexually mature and slightly larger than the male, but will later greatly increase in 

 size until ready to drop to the ground and deposit eggs. (Magnified 6 times.) (Graybill.) 



