THE GOLDFISH AND ITS CULTURE. 



89 



1. The Libelhda possesses a short, flat body, about two inches 

 in length. (See illustration). 



2. The Aeshma is longer than the above, its slender, round 

 body sometimes measuring six inches in length. 



3. The Agrion is not large, the body small and slender, varying 

 in length from xyi to 2^^ inches. 



The wings of the first two named, are, when the insect is at rest, 

 always expanded horizontally, while those of the latter are folded 

 together, pointing backward. 



The Dragon Fly. 



The hind part of the body in all of them is long, slender, and 

 composed of ten rings. On the forepart of the body, they have 

 three pairs of legs, and two pairs of transparent, webbed wings, the 

 latter in some species glitter like gold, in others they are dotted with 

 spots of different color; in the Agrion species they are of the same 

 color as the body. The coloring of the bodies of all, especially the 

 aeshma, is very brilliant, being of a bright green, blue or scarlet, 

 and sometimes mottled and spotted with various colors. 



The eyes are large and prominent, giving the insects a very large 

 field of vision. 



