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FARM FRIENDS AND FARM FOES 



MOTH 



ARMY-WORM 



the day hides beneath the grass from the rays of 

 the sweltering sun. 



This larva grows rapidly in size. At the end 

 of a week it molts or casts its skin, a process in 



which the old 

 skin splits open 

 along the back, 

 and the worm 

 crawls outclothed 

 in a new skin that 

 has developed be- 

 neath the old one. 

 Again it feeds as 

 before, its vo- 

 racity increasing 

 with its size. This 

 molting is re- 

 peated four or five 

 times during the 

 month after the 

 eggs hatch, so 

 that by the end 

 of this period, the 

 insect is one and 

 a half inches long, 

 and has the brown 

 markings of the full-grown Army Worm. 



The instinct of the caterpillar now teaches it to seek 

 more secure shelter for the helpless stage, upon which 

 it is about to enter. It burrows into the soil an inch 

 or less and wriggles about in the earth until it pro- 

 duces a hollow cell. In this it casts its skin again and 

 becomes a pupa the third stage of its existence. When 



LARVA 



PUPA 



