Plate XXI 



Fig. I. 



Congo floor-maggot fly, Anchineroinyia luteola (x3)- Antenna. Natural size, 

 resting position. Tarsus to show dark terminal segment. 



Fig. 2. 



Congo floor-maggot ( x 5) 



Screw-worm fly, Chrysomyia macellaria ( x 3). Antenna. 

 Natural size, resting position. 



