THE BEETLE. 37 



Among the moths and butterflies are found some 

 very injurious insects. The injuries are all done by 

 the larvae. Among them we may mention the clothes 

 moth, cotton worm, boUworm, tobacco moth, tomato 

 moth, tent caterpillar, codling moth, and gypsy moth. 

 The codling moth is the moth whose larva appears as 

 a white worm in the core of an apple. The gypsy moth 

 is very destructive to forest trees in Massachusetts. 



Butterflies and moths belong to the order Lepi- 

 doptera. The name means scaly wings. All the 

 Lepidoptera have sucking mouth parts and complete 

 metamorphosis . 



THE BEETLE. 



1. Identify the body divisions. 



2. Find the eyes, antennse, labium, labial palpi, 

 mandibles. 



3. Identify the parts of the leg. An extra joint, 

 between the coxa and the femur, will be seen. This is 

 called the trochanter. How many segments in the 

 tarsus? Do all the tarsi have the same number? 



4. Study the wing. How does the fore wing 

 differ from the hind wing? The fore wings are here 

 called elytra. What is their use? 



5. How does the hind wing fold up? 



6. Draw the wings, both open and closed. 



7. How many segments in the abdomen? Do you 

 find spiracles? How many? 



8. Make a drawing of the larva of the beetle. 

 Does the beetle have a complete or an incomplete 

 metamorphosis ? 



9. Draw a full page ventral view of a beetle, show- 

 ing all the parts. 



Additional Facts. 



The beetle belongs to the order Coleoptera. This 

 is one of the largest orders of insects. The name 



