THE DAY OF THE MOTH 



105 



the fully developed organs of the male emperor are neces- 

 sary to make the appeal so irresistible as it seems in their 

 case. If the wings of the female, and the antennae of the 

 male form a living installation of wireless telegraphy between 

 these moths, it would be no more wonderful than the normal 

 change from creeping caterpillar to fettered pupa and winged 

 imago which all moths undergo. But it is a process which 

 we cannot yet verify, and the call of the emperors therefore 

 remains one of the most fascinating mysteries in insect life. 





