PLATE XV. 



Fig. i. 



Fig. 2. 



Fig. 3- 



Fig. i. Ephemera Vulgata (May Fly) twice natural size, ready to assume its sub- 

 imago or semi-final flying existence. Note the wing as seen under the pupal mask. 



Fig. 2. Ephemera, Clooon Kufulum, twice natural size, ready to assume its sub-imago 

 existence. Note the wings. 



Fig. 3. Perlidse, Nemoura Variegata- Small Red Stone Fly (Old Joan). 2j times 

 natural size. The larva is shown just ready for its metamorphosis into its imago or 

 perfected flying existence. Note the wings. 



These wings are full sized, but are most delicately packed under their small envelopes, 

 as shewn above. 

 Copyright.] 



TO FACE PAGE 64. 



