Calliphoridae 



419 



B 



Fig. 75. — Pans for rearing maggots on autoclaved food. (Sectional draw- 

 ings.) The lid of pan A has large perforations, the center one being fitted 

 with a metal sleeve (s) into which is inserted a metal tube (t); the sleeve 

 is plugged with cotton covered with cheesecloth, and the other perforations 

 are covered with cotton and cheesecloth; d is a crystallizing dish containing 

 the maggots and their food, c. Pan A is preferred in rearing larvae on 

 autoclaved food. The lid of pan B has a large opening covered with cotton 

 and cheesecloth. In growing larvae on raw meat the openings are covered 

 with cheesecloth only. Pan B is then preferred. 



