PLATE  XIII 
c 
P'lG.  I.  Silver  Tick  {A//iblyo//i//ia  cajaiiense). 
Nat.  size. 
PTu.  2.  Texas  Tick  {Margaropus 
anjiulatus  australis). 
Nat.  size. 
a,  Larvae  or  grass  lice  ;  b,  Nymph  ;  c,  Unengorged  female  ;  il,  Male  ;  e,  Females  partly  engorged  ; 
f,  Female  nearing  repletion  ;  g,  Replete  or  fullv  engorged  female. 
Fic.  3.  ‘Bull  Frog’  [Biifo  marinns)  with  the  Tide  {Amblyoninia  ihssnnile). 
Nat.  size. 
