70 



FLIES. 



foremost, and falls to the ground, where it finds some 

 shelter, either in the ground or under a stone or clod, 

 where it changes to a chrysalis. The chrysalis is dark 

 brown or black, much like the maggot in shape, only 

 flatter on one side ; and from this brown husk the 



Fig. 59. — Piece of untler side of Warbled hide ; warbles about half' 

 size. From a photo by Messrs. Byrne, Richmond, Surrey. 



Warble Fly comes out in three or four weeks, but this 

 length of time is increased htj cold weather. 



Fig. 58 shows a section of a Warble cell in a hide 

 that has been removed from the animal, so that the 



