U2 NATURE-STUDY LESSONS. 



32. {a) Observe the larva. 

 {b) Describe it. 



33. Examine the apple to discover, if possible, how 

 the insect entered it 



34. Why did it enter the apple ? 



35. Discover where the insect got out of the apple. 



36. Examine other apples similarly infested to deter- 

 mine whether these insects always enter at the same 

 point of the apple. 



37. Examine the same apples from day to day to 

 discover how long the larvae remain in the apples. 



38. {a) Search under the bark-scales on the trunk of 



apple or pear trees between October and 

 May for the cocoons of these larvae. 

 (J)) Describe the appearance of the cocoons. 



39. {a) Collect a number of cocoons, keep them in a 



cool place, and observe the moths emerging 

 in the sprmg. 

 {b) Describe the moth as to color and size. 



Note. — The codling-moth is distinguished by having on a brownish spot 

 on the front wings near the end, a little horseshoe of bright, copper-colored 

 scales. The rest of the front wings is pale gray, finely specked. 



40. {a) Compare the color of the moth with that of 



the bark of the trees on which it is com- 

 monly found. 



(J?) What adaptation to environment is effected 

 through its color? 



(c) When does the moth fly, by day or by night ? 



41. (a) In early June examine young apples to dis- 



cover the eggs of this insect. 

 {b") Describe the appearance of the eggs as to color 

 and size. 



