i8o INSECT LIFE. 



lesson is to have the pupils observe the transforma- 

 tions of some common species of lady-bug. 



1. Collect larvae of lady-bugs and place them in a 



breeding cage with a colony of aphids, put- 



(a) ting only one kind in a cage. These larvas 



/^SK can be found in the same situations as the 



Wf aphis-lions (see preceding lesson), and resem- 



^ ble them somewhat in form. They are not 



Fig- 149- gg slender as the aphis-lions, and their jaws 



are shorter. Fig. 149 represents a common species. 



The breeding cage should be arranged and cared for 



the same as for aphis-lions. 



2. Ascertain the method in which lady-bugs pass 

 the pupa state; it is an unusual one. Fig. 150 rep- 

 resents a pupa. 



3. Prepare a set of specimens illustrating 

 the transformations of a species of lady-bug, 

 and place it with your Coleoptera, labeled as 

 Fig. 150. follows : — 



Family Coccinellid^ (Coc-ci-nel'li-dae). 

 TAe Lady-bugs. 



INSECTS INFESTING FRUIT. 



The Codlin-moth {Field and School Work). — The 

 most important pest of the apple is the " worm " that 

 is frequently found feeding within the 

 fruit near its core. This " worm " of 

 wormy apples is the larva of a tiny 

 moth, which is known as the codlin- 

 moth (Fig. 151). Fig. 151. 



I. Carefully examine a number of wormy apples 

 by cutting them to pieces, and write an account of 



