% 



^flr 



PLATE 33. A. Male (a) and female (6) dragon-fly (Calopteryx maculata). The wings of the 

 male are a rich lustrous green, almost black. The wings of the female are very pale green, almost 

 colorless. The male is much more conspicuous. B. Triton cristatus, male, female, and larva. 1 

 upper figure is the male. From Brehm's Thierleben. 



