NEUROPTEROID ORDERS 



43 



Dragon-fly nymphs are rather stout-bodied and live 

 near the bottoms of ponds or streams, and are, at times, 



FIG. 28. Types of Odonata. Above, Dragon-flies with nymphs; 

 below, Damsel-flies. Reduced one-third. 



found buried in the mud. They swim by forcing water 

 from the anal tube, in the walls of which are located the 



