32 Proceedings of the Royal Irish Academy, 



Leuctra Klapaleki Kempny. 

 [Leuctra fusciventris Steph. Deleted.] 

 Leuctra hippopus Kempny. 

 Leuctra inermis Kempny. 

 [Leuctra nigra Klap. Deleted.] 

 Amphigerontia fasciata Fah. 

 Psocus major Kolbe. 

 Ectopsocus Briggsi McLaeh. 

 Hyperetes guestfalicus Kolbe. 

 Osmylus chrysops L. 

 Psectra diptera Bvrm. 

 Chrysopa tenella Hch. 

 Chrysopa vulgaris Sch. 

 Chrysopa prasina Bamh. 

 Chrysopa ventralis Curt. 

 Chrysopa abbreviata Curt. 

 Panorpa germanica L. 

 Grammotaulius atomarius Fah. 

 Limnophilus decipiens Kol. 

 Limnophilus fuscinerWs Zett. 

 Limnophilus nigriceps ZcU. 

 Anabolia nervosa (Leach) Curt. 

 Chaetopterj'x villosa Fab. 

 Apatania Wallengreni McLach. 

 Triaenodes conspersa Ramb. 

 Adicella reducta McLach. 

 Tinodes unicolor Pict. 

 Ithytrichia lamellaris Eaton. 



The Irish Trichoptera are of special intei-est on account of the occurrence 

 of at least four species which liave not been so far observed in other 

 parts of the Britannic area. These are Limnophilus fuscinervis, Apatania 

 fimbriota, Tinoda macrdicomis, and Agapetus ddicatulus. It is not unlikely 

 that the first-mentioned species will eventually be found inhabiting parts of 

 northern Britain. The three remaining species have now been known from 

 Ireland for more than twenty years, yet it would seem that no eWdence 

 of their occurrence in Great Britain is forthcoming. These species are 

 interesting from a faunislic point of view. Notes on their distribution will 

 be found in other parts of this paper. 



■\Ve have endeavoured to give an outline of the geographical distribution 



