106 FLIES FOE JUNE. 



There are other species, some much smaller, 

 of Red Beetles, and Ladybirds (Coccinettidce), 

 which may be imitated in a similar manner, and 

 used when numerous. This is one of the largest 

 employed. 



To make it with wings at rest, the darkest 

 part of the starling's wing and a red cock's 

 hackle may be wound upon the above body in 

 the same way as for the Fern Fly, No. 26. 



REMARKS. A famous fly for both Trout and 

 Grayling, and may be used till the end of 

 September, 



No. 31. THE DARK MACKEREL. 



This is the name given to the insect repre- 

 sented by the figure on the right-hand side of 

 the plate, after it has changed from a dark kind 

 of Green Drake shown on the left side. Both 

 the male and female change to the dark brown, 

 but the former is the smallest and darkest fly. 

 Their habits are similar in every respect to the 

 Green and the Grey Drake (Nos. 28 and 29). 

 Sir H. Davy says that " the Green Ephemera, or 

 May Fly, lays her eggs sitting on the water." 

 (Salmonia, p. 249.) My observations lead to the 



