STRUCTURE OF PUP^. 



305 



nature of gills; for the larva lives under water in streams 

 and ditches, enclosed for the most part in a tube of earth. 

 It is of a fine crimson colour, the origin of its popular 

 name; but it becomes more dark and opaque in the pupa 

 state. 



The appendages which are thrown off by the larva 



^-^5b 



Of ^hironomns pfumosus. h 



, </, pupas of Uie same, aiagn 



vol.. vr. 



, larva of tlic i-ame, called the binnd worm, 

 ificd to slmw their plumed spiracles. 



26* 



