28 BritisJi Di-ai^-oi/fics. 



2. Odonata, or Dragonflies. 



3. Neitroptcra-planipciuiia, containing the SialicLt, or 

 Alderflies ; RaphidiicL^e, or Snakeflies ; Osm\-lida; ; 

 Hemerobiida^ ; Chrysopida;, or Lacewings ; Coniop- 

 terygidit ; and Panorpidse, or Scorpionflies. 



4. TricJioptcra, or Caddis-flies. 



The McxllopJiaga, or Bird-hce, &c., are b}' some 

 added to tlie N^ciiroptcra, and if so they form a first 

 division in front of the Psocidct. The Embiidai and 

 Termitida.', or white ants ('neither of which is represented 

 in Britain J, fall into the Psr/ido-iic/iroptcrn. The Perlida;, 

 Odonata, and P2phemerid?e are sometimes united under 

 the name of Ncnroptcra-aiiphibiotica, the nx'mphs of all 

 of them being aquatic. 



Brauer, in a s\-stem of classification of insects 

 proposed in iSSs,"^ divides them into seventeen orders, 

 and of these seven are made from the Xcuroptera 

 as usuall)^ understood, while the Embiida; form part 

 of an eighth — the OrtJioptcra. 



The seven are : 



1. Ephemeridai. 



2. Odonata. 



3. Plecoptera (= Perlida^). 



4. Corrodentia (= Termitida-, Psocidas, and Mallo- 



phaga). 



5. Neuroptera (= Hemerobiicke and Sialida). 



6. Panorpat;e (= Panorpida;). 



7. Trichoptera. 



* " Syst. Zool. Studicn," AN'icn, 1885. 



