THE FLIES. 429 



Mr. Kirby proposes, as an additional remedy for 

 this evil, that, when the wind is in a favourable 

 quarter, the fumes of tobacco or sulphur should be 

 thrown upon the corn. But, if this is done, it 

 should be as soon as the ears begin to appear from 

 the unsheathing leaf of the stalk. 



The Wheat-fly is about the twelfth of an inch in 

 length. Its body and legs are of a dull yellow co- 

 lour, and the wings are whitish, with a fringed 

 margin *. 



THE FLIES. 



THE mouth of the insects of this tribe has a soft 

 fleshy proboscis with two equal lips ; and the suck- 

 er is furnished with bristles. The antennae are ge- 

 nerally very short. 



The appellation of Fly has been given almost 

 exclusively to these insects, probably from their be- 

 ing so much more common than any others. The 

 larva? of some of the species live in the water; 

 others are found on trees, where they devour the 

 plant-lice ; and others in putrid flesh, cheese, Sec. 

 Most of the Flies sleep during the winter, and 

 therefore lay up no provision for their nourishment 

 in the cold season. — At the decline of the year, 

 when the mornings and evenings become chilly 



Linn, Tian. Iii, p, 243.— Iv. p. 224-, 240.— -v. p. 96. 



