THE BUTTERFLIES AND MOTHS 99 



orange trees, being especially destructive to young plants 

 in the nursery. They are curious-looking caterpillars, and 

 doubtless their unusual appearance, possibly suggestive of 

 a watchdog, has given rise to the common name. 



Briefly summarized, the life history of the Orange-dog 

 Butterfly is this : The eggs are deposited singly upon the 



BUTTERFLY OF ORANGE-DOG CATERPILLAR JUST EMERGED FROM CHRYSALIS 



young growth of the orange, generally near the tips of 

 leaves or branches. In a week or more they hatch into 

 tiny caterpillars that feed upon the tender foliage. When 

 not eating they rest upon the lower surface of the leaves. 

 In about a week, they become too large for the skin with 

 which they were born, and they molt or cast their skin, 

 coming forth with a new one that had been formed beneath 



