450 Tur BLOWFLIES oF NortH AMERICA 
PLATE 39 
Bufolucilia silvarum (Meigen) 
Larva 
Cephaloskeleton, first instar. 
Cephaloskeleton, second instar. 
Cephaloskeleton, third instar. 
Posterior spiracle, third instar. 
Lucilia illustris (Meigen) 
Cephaloskeleton, first instar. 
Cephaloskeleton, second instar. 
Cephaloskeleton, third instar. 
Posterior spiracle, third instar. 
Heme Sane 
