European Trichoptera. 307 



dorsalis, Curtis; vulgaris, Pictet; paupera, Hagen ; ohli- 

 terata, McLachlan ; fasciata, Hagen ; septentrionis, 

 McLachlan; ferruginea, (*) Hagen ; aurata, Brauer ; inter- 

 media, McLachlan ; venusta, Pictet, M.S. ; luericlionalis, (*) 

 Ed. Pictet; stigmatica,{^) Kolenati ; wMmf/ft, McLachlan ; 

 and glareosa, McLachlan. The three species marked 

 with an asterisk (*) have not been seen by me. I possess 

 all the others. There can be no doubt that this list very 

 inadequately represents the actual number that exist in 

 Europe. All the species frequent swiftly-running 

 streams and torrents, especially in mountainous districts, 

 and when these shall have been more diligently explored, 

 I look forward to the number being doubled ; perhaps 

 also some means of pairing the sexes may then be 

 discovered. 



Explanation of Plate XIV. 



Fig. 1. Arctoipsyche ladogensis, neuration of wings ; la, appendicea 

 of <? , from above ; lb, from side ; Ic, maxillary palpus. 



2. Dolo'pMlus copiosus, neuration of wings ; 2a, appendices of <J , 



from side ; 2?), of ? ; 2c, maxillary palpus. 



3. Halesus (Drusus) Muelleri, appendices of <? , from above ; 3a, 



from side (a, dorsal lobe ; b, aj^p. intermed. ; c, app. sup. ; 

 d, app. inf. ; e, penis). 



4. Halesus ■ (Drusus) trifidus, appendices of S . from above ; 4a, 



from side. 



5. Halesus (Drusus) rectus, appendices of cj , from above ; 5a, 



from side. 



6. Stenophylax algosus, appendices of <J , from above ; 6a, from side. 



7. Sericostoma faciale, appendices of ^ , from side ; 7a, ventral 



triangle ; 7b, app. intermed. ; 7c, head and palpi. 



8. Sericostoma ca/rinthiacwm, appendices of (J , from side ; 8a, ven- 



tral triangle ; 8&, app. intermed. 



