10.8 



INSECTS INJURIOUS TO THE APPLE. 



injury to fruit-trees. It is represented in Fig. 105 in the act of 



devouring the buds 

 Fig. 105. on a twig. It is of 



a light yellowish- 

 gray color, varie- 

 gated with dull 

 green, with a dark 

 line down the back, 

 and fainter lines 

 along the sides; the 

 spiracles, or breath- 

 ing-pores, are black. 

 When full grown, it 

 is nearly an inch and a half long, when it enters the earth, and 

 there changes to a brown chrysalis. The moth (Fig. 105) has 

 the fore wings of a light bluish gray, with darker markings, 

 and the hind wings pearly white. The length of the body is 

 about seven-tenths of an inch, and the wings measure, when 

 spread, nearly an inch and a half across. 



The W-marked Cut-worm, Agrotis elandestina (Harris) 

 (Fig. 106), has also been found , feeding on apple-buds, al- 

 though it more frequently attacks low 

 bushes, such as currants ; also succulent 

 plants, such as young corn, cabbages, 

 etc. The moth of this species (Fig. 

 107) has the fore wings of a rather dark 

 ash-gray color, with the deeper lines and 

 wavy bands but faintly traced. The hind wings are dull 

 white, with a tinge of brown, becoming darker towards the 

 hinder edge. The chrysalis is of the usual brown color, and 

 is formed in a cell under the earth, as in the other species 

 referred to. 



The family of cut-worms is a large one, and embraces 

 many other destructive species, but none of them, except 

 those above mentioned, are known to have the habit of 

 climbing trees. Some of the other injurious species will be 



Fm. 106. 



