7!> FLIES FOR A P R I L. 



No. 17. JENNY SPINNER. 



This is the name given to the Iron Blue (No. 

 16) in his new dress, and it lives four or five days 

 after the metamorphosis, sporting in the still sum- 

 mer atmosphere. The Iron Blue must be coming 

 out of its nympha at the same time that this fly is 

 in season ; the Iron Blue is however found on 

 the water chiefly on cold days, from the end of 

 April until the middle of June.* The Jenny 

 Spinner lasts all the Summer, is out on mild days, 

 particularly towards the evening, and is a killing 

 fly even when the water is extremely fine. 







IMITATION. 



BODY. White floss silk wound round the shank 

 of the hook, &c. and tied on at the 

 head and tail with brown silk, which 

 must be shewn. 



TAIL. A whisk or two of a light dun hackle. 



WINGS AND LEGS Are best imitated by making 

 them buzz ; for which purpose the 

 lightest dun hackle that can be pro- 

 cured should be used. 



* A little dark dun with a brown head, not exactly similar to, but 

 very much like the Iron Blue, is found in August, and then a Spinner 

 like the Jenny Spinner, has an orange-coloured head, and the extremity 

 of its body a lighter colour. 



