56 SALMONIA. 



June and July a yellow body, and there is a 

 water fly which in the evening is generally 

 found before the moths appear, called the 

 red spinner. Towards the end of August, 

 the Ephemerae appear again in the middle 

 of the day : a very pale small Ephemera 

 which is of the same colour as that which is 

 seen in some rivers in the beginning of July. 

 In September and October this kind of fly 

 is found with an olive body, and it becomes 

 darker in October, and paler in November. 

 There are two other flies which appear in 

 the end of September and continue during 

 October if the weather be mild: a large 

 yellow fly with a fleshy body and wings like 

 a moth; and a small fly with four wings, 

 with a dark or claret coloured body, that 

 when it falls on the water has its wings like 

 the great yellow fly, flat on its back. This, 

 or a claret bodied fly, very similar in cha- 

 racter, may be likewise found in March or 

 April, on some waters. In this river I have 

 often caught many large trout in April and 

 the beginning of May, with the blue dun, 

 having the yellow body; and in the upper 



