126 Observations on the Wheat- Moth. 



the farina, or mealy part, itself) to its finished sizel 

 How long it takes to acquire this size, after its intro- 

 duction into the grain, depends, I believe, upon cir- 

 cumstances. During the last winter, I kept a quan- 

 tity of wheat in a vial, and frequently examined some 

 of the grains ; but I could perceive no progress in the 

 larva, during that season. In the spring, however, 

 several of them came out. Yet, as so many come 

 out, and leave the grains hollow, soon after harvest, 

 it would seem, that they acquired their growth, in a 

 short time. 



When the larva first comes out, it is very feeble : 

 indeed, even in its finished state, it is rather delicate. 

 At first, it has no appearance of wings ; but, in a 

 short time, it unfolds them, and flies off, or creeps 

 away. 



* 



This is the sum of the information that I have been 

 able to obtain. 



I am, dear Sir, 



Your's, 8cc, 

 Wm. Mason Walmslet. 



By berry (Pennsylvania J, November 28th, 

 1803. 



