PLATE XVI 



B 



D 



Warble-maggots {Hypodcrma). A, Moult of 3rd stage cuticle revealing 

 4th instar. B, 4th stage larvae (dorsal and ventral aspect). C, 5th stage 

 (final) larva of H. lineatuin. D, Puparia of H. hovis (dorsal and ventral 

 aspect). 



To face p. 404.] [ T. Price &^ H. Pattison. photo. 



