Plate XXII 



Fig. I. 

 Screw- worm ( x 5). 



Fig. 2. 



Tumlni fly, Cordylobia anthropophaga ( x 4). Antenna. Natural size, 



resting position. Tarsus. (Compare PI. XXI, Fig. 1.) 



Tlie maggot fly, Bengalia depressa ( x 4). 



