NATURE-STUDY LESSONS. 69 



8. Discover other things in Nature that are protected 

 by their color. 



9. Draw a leaf showing the egg or eggs attached to it. 



B. The Larva. 



10. {a) How did the larva get out of the tgg ? 



(^) Describe this larva. Draw it. 



The larvse of butterflies and moths are sometimes called caterpillars and 

 sometimes worms. 



11. (a) Describe the appearance of a leaf on which 



you have found a larva. 

 (b) Do they eat the leaf-tissue or do they suck the 

 sap from it ? 



12. Describe the way in which this larva eats. 



13. Examine the leaves infested by other larvse and 

 determine whether they eat in the same manner as this 

 one. 



14. Describe the way the larva crawls. 



15. Into how many parts is its body divided? 

 The teacher will show you what is meant by a segment of a larva. 



16. How many legs has this larva ? 



On the posterior segments of this larva, and of other but not all kinds 

 of larvae, there are pairs of appendages resembling legs which are called 

 ^olegs. 



17. Compare these prolegs with the true legs on the 

 segments near the head in respect to number, size, shape, 

 joints, color, and use. 



18. How many segments are without legs of any kind? 



19. (12) Dust some insect powder on the larvae ; watch 



the result. 



(b) What has caused the death of the larvae ? 



(c) Would sprinkling the powder on a cat or a 



dog be likely to cause death? Why not? 



