123 



THE CATTLE LOUSE. 



Trichodectes scalaris Nitsch. 



Exhibit: Adult and figure. 



THE SHEEP LOUSE. 



Trichodectes sphserocephalus Nitsch. 

 Exhibit: Adult and figure. 



TICKS INJURIOUS TO DOMESTIC ANIMALS. 



For general account, bibliography, and illustrations see Salmon and 

 Stiles, Cattle Ticks, 17th Ann. Rept. B. A. I., U. S. Dept. Agric, pp. 

 380^91, 1900. 



THE CATTLE TICK. 

 Boophilus annulcdus Say. 

 (Very common on cattle below the Texas fever line and known to be 

 responsible for transmission of Texas fever among cattle.) 

 Exhibit: Adult and figure. 



THE SOUTHERN CHICKEN TICK. 



— Argas miniatus Koch. 



(Also reported on cattle.) 

 Exhibit: Adult and figure. 



THE SPINOSE EAR TICK. 



Ornithodoros megnini Duges. 

 (On man, cattle, horses, dogs, sheep, etc.) 

 Exhibit: Adult and figure. 



THE AMERICAN DOG TICK. 



Dermacentor electus Koch. 

 (On man, cattle, dogs, and horses.) 

 Exhibit: Adult and figure. 



THE NETTED TICK. 



Dermacentor reticulatus Fab. 

 (On man, cattle, horses, and sheep.) 

 Exhibit: Adult and figure. 



THE LONE-STAR TICK. 



Amblyomma americanum Linn. 

 (Not uncommon on cattle and man.) 

 Exhibit: Adult and figure. 



THE CASTOR-BEAN TICK. 



Ixodes ricinvs Linn. 

 (On man, cats, dogs, cattle, goats, horses, rabbits, etc.) 

 Exhibit: Adult and figure. 



