PLATE VIII. 



FIG 2. Numera variegata. 



Flying form of Fig i. 



Magnified. 



FIG. i. Perlidae, Nemura variegata Small Red 

 Stone-Fly (Old Joan). z\ times natural size. 

 The larva is shown just ready for its metamor- 

 phosis into its imago or perfected flying existence. 

 Note the wings. 



These wings are full sized, but are most deli- 

 cately packed under their small envelopes, as 

 shown above. 



FIG 3. Sialis cutaricus (Alder Fly). 

 form. Magnified. 



Larval 



SlALID^E. 



FIG 4. Alder Fly in flying form, twice its 

 natural size. 



FIG. 5. Diptera Musca domesticus. Pupal 

 form of House Fly, four times natural size. 



FIG. 6. Larval form of same, four times 

 natural size. 



DIPTERA. 



