Plate I 



Side view of Blow-fly, C. crythroccpliala ( x 5). A, cheek (jowl) ; 

 B, squama; C, halter. 



A 



Fig- 3- 



Fig. 2. Right middle leg of Flesh fly, S. caniaria ( x 6). A, part of thorax; B, coxa; 



B', chitinous spur fitting into groove in C, trochanter ; D, femur ; E, tibia; F, tarsus 



with five segments ; G, under surface of terminal segments of tarsus showing pulvilli 



( X 12) ; H, upper surface showing claws. 

 Fig. 3. Right side of thorax and part of right wing of Blow-fly, C. crythroccpliala ( x 7). 



A, anterior part of thorax; B, anal angle of wing; C, alula; D, antisquama; 



E, squama ; F, scutellum ; G, abdomen. 



