218 THE BUTTEREEY VIVARIUM. 



yellow tone which suffuses the basal portion of the 

 anterior wings, and extends over nearly half the 

 surface of the hinder pair. 



The next genus is Cordulia, which is still of 

 the short-bodied section. G. Artisia is a very 

 pretty species, having its exquisitely clear wings 

 .finely suffused with brown, and yet remaining as 

 clear as glass. The wings of the female are of a 

 slightly richer tone than those of the male, but in 

 other respects their general aspect is very similar, 

 both having their bodies beautifully maculated 

 with black and green, in the manner which is so 

 conspicuous in the great long-tailed species which 

 come next in the arrangement. 



The first of this kind form the genus Cor- 

 dulegaster, C. Annulatus having the long slender 

 body very beautifully annulated or ringed with 

 dark markings. 



The genus Aeshia contains Aeslma Cyanea, 

 the great long-tailed species, so commonly seen 

 in our gardens, and known as the " Dragon- 

 fly" par excellence. The females of A. Cyanea 

 have the wings suffused with brown, like 

 so many other species ; but as the males have 

 sometimes the same peculiarity, it is not, in this 

 instance, a very characteristic distinction. The 



