210 



BIOLOGY FOR BEGINNERS 



the pollenation of flowers, by reason of their thirst for nectar and 

 their hairy bodies which carry the pollen. 



FIG. 69. Metamorphosis, complete of monarch butterfly, Anosia plexippus. 

 a, egg (greatly magnified); b, caterpillar or larva;' c, chrysalis or pupa; d, adult 

 or imago. After Jordan and Kellogg. Natural size. (From Kellogg.) 



Moths and butterflies are often confused, but can be distinguished 

 by the following comparison : 



Butterfly 

 Day flier 



Chrysalis for pupa 

 Wings vertical when at rest 

 Antennae knobbed 

 Abdomen slender 



Moth 



Night flier 

 Cocoon for pupa 

 Wings held horizontal 

 Antennae feathery 

 Abdomen stout 



