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i. THE WHITE-WING DAY-FLY. 

 EPHEMERA CULICIFORMIS. 



Plate 7. 



The Antlers have a multitude of knotted joints, and grow fmaller 



to the point. 

 The Bristles of the Tail are hard, and firm. 



This is a fwift-wing'd Fly, abundant about running waters, in 

 the months of June and July 5 where it becomes the food of a mul- 

 titude of fifties : many leap at it as it drops toward the water 5 and 

 others watch the reeds and rufhes near the fhore, and take it with 

 more eafe as it is dropping its eggs. This was caught in July laft, 

 near Efher. 



Its Head is of a dufky brown. 



The Eyes are green. 



The Studs are jet black, and fhine. 



The Antlers are of a chefnut brown. 



The Mouth is a kind of amber-colour'd beak. 



Its Trunk is of a tawny brown, with a brighter fpot in the middle. 

 The Scutcheon is nearly white. 



Ifs Body is of a dead brown. 

 The Rings are pale. 



Its Legs are 'of a greyifh, or afh colour. 



The Wings, tho* not decorated as the Moths, or Butterflies -, yet 

 have a peculiar and wonderful prettinefs : they are of a pearly 

 white, mottled here and there, and clouded as it were with the 

 fame colour, only thicker, or lefs pure. 



The Tail is pale brown. 

 The Brijiles are ruddy. 



2. ROCK 



