INDEX. 85 
• 
Temperature, effect on engorged females of cattle tick 31 32 
Beed licks of cattle tick 24 25 
in relation to incubation of cattle tick I!) L'l 
Texas fever. Set Fever, Texas.) 
Tick, adobe. (See Argassanchi 
Australian. (See Boophilu8 <ntstralis.) 
black-legged. (See Ixodes scapularis.) 
blue, common, bibliographic reference 69 
bont. (See Amblyomma hebrseum.) 
castor bean, American. (See Ixodes cookei.) 
European. I See /units ricinus. 
cattle. See also Margaropus annulatus.) 
adult female, description 3 1 
male, descript ion 30 
stage 30-34 
adults as affected by direct sunlight 32 
submergence in water 32-33, 39 
attachments of specimens to each other 35 
bibliography 65 69 
control. {See eradication methods.) 
descript ions of adults 30-31 
development as affected by ration of host 35-36 
on host 28-30 
dropping from host 33 
egg stage 15-23 
eggs as affected by heat and cold 21-22 
submergence in water 22, 39 
indication of viability 15-16 
number deposited 17 
percentage hatching 23 
engorged adults as affected by submergence in water 32-33, 39 
continuous cold and heat 31-32 
enemies 36-37, 39 
eradication, from United States possible 9 
methods 37-39 
most important factor 13 
host relations 34-35, 39 
importance of knowledge of life history 9-10 
incubation 17-23 
period 17 _' I 
infestation affected by ration of host 35-36 
knowledge of varial ions of periods in life history essential 13 
lack in knowledge of local climatic variations and dissemination. 10 
larval stage 23-30 
nonparasitic period 23 26 
parasitic period 27-30 
life history 13-33 
locomot ion 33-34, 39 
longevity of ^>'<'(\ ticks 25-26 
losses • ' 11-12 
nude, position '»n host with relation to female 30 
molts of larval stages 28-29 
iii' • — t Important factor from standpoint of control 13 
