146 ZOOLOGY. 



A whitish line running along each side ; between this 

 and the dorsal line a dark transverse streak on each 

 segment. The brown pupa (Fig. 100) remains in the 

 soil during the winter, and is not invested in a cocoon. 

 The moth appears in May ; during the day it rests on 

 windows, in barns, etc. The greenish yellow eggs 

 are laid separately on the leaves of cabbages (some- 

 times also on lettuces and turnips). The caterpillars, 

 which appear in fourteen days, creep about actively 

 between the leaves. Within a month they are full- 



FiG. 100. — The Cabbage Moth (Mamestra IjrassiciB)^ with caterpillar and pupa. 



grown, and become pupae in the soil. At the end of 

 July and in August the summer generation of moths 

 appears. From the eggs laid by these are hatched 

 a second generation of caterpillars, which are always 

 much more numerous than those of the first. From 

 August to October they are found in all kinds of 

 cabbage, especially compactly headed kinds and cauli- 

 flower. At first they eat holes in the leaves, leaving, 

 however, the chief veins and usually the edges. Later 

 on they eat right on into the heart of the cabbage. 

 They fill their burrows with excrement, and the 



