OF A SELECTION OF INSECTS, ETC. 49 



The term Dun appears to have been applied in 

 a general sense to the different species of Ephe- 

 meridre, in their first winged state, (except those 

 of the largest size,) another term being added to 

 designate each species, as the Blue Dun, Yellow 

 Dun, &c. 



In like manner the term Spinner seems to have 

 been applied as a general name for the final 

 change or perfect state of the same insects, another 

 name also being added to distinguish each species, 

 as the Red Spinner, Great Red Spinner, &c. 



It may be here added, that the Imitations of 

 the Palmers are, to the best of my knowledge and 

 belief, new ; and I beg leave to assure my brother 

 Anglers, that they have proved very effective. 

 The figures represent the insect in its medium size ; 

 it may be made and used either larger or smaller. 



It should also be stated that the length of the 

 lives of the Ephemeridae described below, is esti- 

 mated by the time they lived in boxes. 



