INSECTS 



flowers. Are the brightest colors on upper or under 

 side of wings of butterfly ? Why ? (Think of the colors 

 in a flower.) Why is it better for moths to hold their 

 wings flat out when at rest ? Where are moths during 

 the day? How can you test whether the color of the 

 wings is %iven by the scales ? 



State how moths and butterflies differ in respect to : 

 body, wings, feelers, habits ; abundance of scales. 



Insects and Flowers. We are indebted to insects for 

 the bright colors and sweet honey of flowers. Flowers 

 need insects to carry their pollen to other flowers, as cross- 

 fertilization produces the best seeds. The insects need the 

 nectar of the flowers for food, and the bright colors and 

 sweet odors are the advertisements of the flowers to at- 

 tract insects. There were no flowers in the world before 

 flying insects were developed. Moths, butterflies, and 

 bees carry most pollen (see Plant Biology, Chap. VI). 



Comparative Study. Make a table like this, occupying entire page 

 of notebook, leaving no margins, and fill in accurately : 



