28 NATURAL HISTORY OF AQUATIC INSECTS 



THE GROUPS TO WHICH AQUATIC INSECTS 



BELONG. 



The aquatic Insects are here described in the 

 following order :- 



1. Coleoptera (Beetles). 



2. Diptera (Two-winged Flies). 



3. Hymenoptera (Ichneumons, &c.). 



4. Lepidoptera (Moths). 



5. Trichoptera (Caddis-flies). 



6. Sialidae (Alder-flies). 



7. Perlidae (Stone-flies). 



8. Ephemeridae (May-flies). 



9. Odonata (Dragon-flies). 



10. Rhynchota (Water-scorpions, &c.). 



11. Thysanura (Spring-tails). 



The names employed by anglers should be noted, 

 as much information respecting the habits of aquatic 

 Insects can be extracted from anglers by those who 

 speak their language. Ronalds' Fly-fishers' Entomo- 

 logy and other books give the zoological names of 

 every species imitated by the angler. In the following 

 short list each is merely referred to its proper 

 order. 



2. Diptera. Golden Dun Midge. 



5. Trichoptera. Blue Dun, Little Red Spinner, 

 Sand Fly, Grannom, Turkey Brown, Dark Spinner, 

 Silver Horns, Cinnamon Fly. 



6. Sialidae. Alder or Orl Fly. 



7. Perlidae. Red Fly (Old Joan), Stone Fly, 

 Willow Fly (Shamrock Fly). 



