50 NATURE STUDY 



the eggs are hatched grubs, — caterpillar-like animals, 

 — except that they have only three pairs of 

 legs. They are voracious eaters, often doing 

 great damage, and after various moults hide 

 themselves in the ground and there quietly 

 A common Undergo the great changes which make of them 

 Lightning ^-^^q adult auimals, very unlike the grubs. 



Most of the other statements with reference 

 to the locust hold true in the case of the beetle. 



Moths and Butterflies : 



The caterpillars of moths and the butterflies are 

 most common in the fall of the year. All caterpillars 

 should be placed in vivaria with moist earth and plenty 

 of food. This food is the leaves of the plant on which 

 they were found. In September, caterpillars are usually 

 full grown, and speedily dig their way into the ground, 

 there to spend the winter, or else they weave for them- 

 selves a cocoon, which protects them from both cold and 

 wet. The common Isabella moth caterpillar, reddish- 

 brown and black, remains fairly active all winter. 

 Doubtless its thick, 

 rather long hair pro- 

 tects it sufficiently. 



Hektograph draw- 

 ings of whatever cater- 

 pillar is brought in 

 should be made and 

 used for study after 

 the children have been led to observe what and how it 

 eats, how it moves, how it breathes. There is a head 

 without compound eyes and with stout jaws, succeeded 

 by thirteen body segments, on the first three of which are 



Caterpillar. 



