PART V 



LISTS OF DESCRIBED BRITISH EPHEMERID^, 

 TRICHOPTERA, AND PERLID.E 



THE lists, as the title indicates, contain all 

 the known species of British EPHEMERID^E, 

 TRICHOPTERA, and PERLID^;. Roman figures op- 

 posite individual species indicate the months 

 during which they occur on the Hamp- 

 shire Test and the Derbyshire Dove. I have 

 selected these rivers as being typical of two 

 distinct classes of streams on which dry-fly 

 fishing is practised. It should be noted, how- 

 ever, that I am only dealing with flies that 

 have actually passed through my hands ; and 

 the absence of any record of a particular species 

 must be understood to indicate merely that 

 this fly has not been captured and sent to me 

 for identification from either of the rivers here 

 dealt with. The majority of species recorded 

 from the Dove were sent by Mr. John Hender- 

 son, and his son, Mr. Jack Henderson, t)f Clifton, 

 Ashbourne. With the single exception of 

 Ephemera vulgata, which has been recorded by 

 Mr. Eaton, all the flies indicated as occurring 



