PRESERVATION OF THE SPECIES 177 



ized ? What is the appearance of a parasitized cater- 

 pillar ? 



6. What rudimentary structures can you identify in the 

 pupa ? What kind of mouth parts has this stage ? 



7. Which of these stages is the active stage ? Which 

 stage is quiescent ? What is really going on in the quies- 

 cent stage ? In which stage does the insect grow ? feed ? 

 If the insect were harmful, in which stage would it do the 

 damage ? How ? 



8. Describe what occurs when the pupa changes into 

 the adult. What is the appearance of the wings in the be- 

 ginning ? What changes take place ? 



9. What kind of mouth parts has the adult ? Describe. 



10. Describe the antennae. 



How do the antennas of moths and butterflies vary ? 



1 1. What is the size and appearance of the eggs ? Are 

 they laid singly or in groups .■' 



Suggested drawings. 



a. A caterpillar, side view. 



b. A pupa, ventral view. 



c. An adult, dorsal view. 



d. A few eggs. 



5. Development of the Hen's Egg 

 Materials. 



An incubator, a brooder, a setting of eggs. 

 Directions. 



Read carefully the directions for setting up and regulat- 

 ing the incubator. Remember that the temperature should 

 average 103 degrees and should not vary more than two 

 or three degrees above or below this. Candle the eggs 



