THE CADDIS FLY 



ORDER VII. TRICHOPTERA, OR CADDIS 



FLIES 



These insects are divided into seven different families, 

 but it will serve our purpose to set out a few salient 

 features, and illustrate our remarks by a consideration 



Caci3iv.ifl._y 



Fig. 31, Caddis Fly Larva. 

 (Twice natural size.) 



of the life-story of the familiar Caddis Fly {Phrygonea 

 grandis, Figs. 31 and 32) known by sight to £<U those 

 whose country expeditions in Summer take them to 



73 



