ADVANTAGES TO MAN. 



25 



feet on the surface of the water, on which there was 

 not at least one of these flies, and not unfrequently 

 there were eight, ten, or twelve, in that extent of 

 superficies. On a subsequent occasion, I noticed a 

 mass of two-winged flies {Tipulidce, Sfc), some inches 



Ceddomyia destructor, and tritici, with Larva, all feeding. 



in thickness, cast upon the beach of Lough Weagh, 

 not far from the town of Antrim, 



To " man, proud man," they bring rich and 

 numerous offerings. The gall of the oak, which. 



Oak Apple, Gall, and Cynips quercus folii. 



when converted into ink, " speeds the soft intercourse 



