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1900. * British Dragonflies (Odonata), pp. 1-350, 57 figs., 27 

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Lyon, Mary B. 



1915. The ecology of the dragonfly n3'mphs of Cascadilla creek. 

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Needham, James G. 



• 1897. On rearing dragonflies. Can. Ent., 29 : 94-96, fig. 

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Needham, J. G., and Cockerell, T. D. A. 



1903. Some hitherto unknown nymphs of Odonata from New 

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Riley, C. F. Curtis 



1912. * Observations on the ecology of dragonfly nymphs : Re- 

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Ris, F. 



1909. Odonata. Siisswasserfauna Deutschlands, 9 : 1-67, 79 figs. 



Rousseau, E, 



1908. * Contributions a la connaissance des metamorphoses des 



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TiLLYARD, R. J. 



1916. Further observations on the emergence of dragonfly-larvae 

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1917. * The biology of dragonflies (Odonata or Paraneuroptera) 

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Walker, E. M. 



1913. New nymphs of Canadian Odonata. Can. Ent., 45: 161- 

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1914. New and little-known nymphs of Canadian Odonata. 

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1915. The Odonata of the vicinity of Go Home Bay. /;; Con- 

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