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NEUROPTERA. 



Synopsis of the British Planipennes. 



By Dr. Hagen. 



The following synoptical attempt contains the whole of the 

 true Neuroptera, excepting the Phryganidce ; consequently 

 all the Neuroptera, with complete metamorphoses. The 

 Phryganidce, being the family in which the separation of the 

 species is most difficult, is held back to allow time for a 

 thorough examination of the types of Mr. Curtis and M. 

 Pictet. I have only introduced in the following synopsis 

 those species of which I have seen in British collections 

 authentic British specimens. The given number of species 

 may be considered as comparatively large, since the published 

 lists for the other countries of Europe give smaller numbers. 

 It is true that the British Fauna has been more thoroughly 

 investigated, and there are but a few countries (Sweden, 

 Austria), or even provinces, for which there exist complete 

 notices on all the Neuropterous families, as those by Wesmael, 

 Schummel, Schneider, Brauer. Nevertheless, it may be an- 

 ticipated with certainty that, by close research, the number of 

 the British Neuroptera may yet be considerably increased. 

 From the peculiar curve of the isothermal lines, as is well 

 known, species which in Provence, and which are unknown in 



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