THE GOPHER-TORTOISE TICK. 125 
LIFE HISTORY. 
Observations on the biology of this tick have been published by 
Hooker (1909a). 
The egg (Table XLV).— Three females were engorged upon a 
box tortoise. Their respective dimensions were: 24 by 18.5 by 11 
Fic. 8.—The gopher-tortoise tick, Amblyomma tuberculatum: Distribution. The large dots show localities 
where the species has been collected in our investigation. The small dots indicate the probable range 
of the tick. (Original.) 
mm.; 19 by 13.5 by 10 mm. and 19 by 13.5 by 8 mm. The first 
female weighed 2.35 grams. This and the last female had a pre- 
oviposition period of 8 days at a mean temperature of 84° F. The 
second female began depositing on the tenth day after dropping. 
