INTRODUCTION 29 



8. Ephemeridae. — March Brown (Dun Drake), Great 

 Red Spinner, Yellow Dun, Iron Blue Dun, Jenny- 

 Spinner, Little Yellow May Dun (Silk Fly), Sky Blue, 

 Green Drake (May Fly, Cardew), Grey Drake, Orange 

 Dun, Black Drake, Dark Mackerel, Pale Evening 

 Dun, July Dun, August Dun, Whirling Blue Dun, 

 Little Pale Blue Dun (Willow Fly). 



