EXPLANATION OF THE PLATES. 



[a, sideview ; l>, Uiliiuin ; c, appendages; d, processes above the base of first pair of legs; 



e, front view of the liead.] 



PLATE I. 



Fig. 1. Auax formosus. 



" 2. Anax Junius. 



" 3. EpifBschna heros. 



" 4. iEschna species. No. 19. 



PLATE TL 



Fig. 1. JSschna grandis. 



" 2. .(Eschna eremitica. 



" 3. NeuriT?sehna vinosa. 



" 4. Gomphseschna furcillata. 



PLATE III. 



Fig. 1. .lEsehna constricta. 

 " 2. Gynacantha species. 'No. 1. 

 " 3. Species. No. 24. 



PLATE IV. 



Fig. 1. .Esclina juncea. 

 " 2. Jischna species. No. 18. 

 " 3. .iEschna cyanea. 



PLATE V. 



Fig. 1. Brachytron pratense. 



" 2. jEschua mixta. 



" 3. ^schna affinis. 



'•' 4. .iEscluia rufescens. 



" 5. iEschna viridis. 



