330 



C. H. TURNER. 



TABLE IX. 



EFFECT OF AGE ON THE RESPONSES OF Philosamia cynthia TO SOUND. 



TABLE X. 



EFFECT OF TEMPERATURE ON THE RESPONSES OF Callosamia promethea TO SOUND. 



TABLE XI. 



EFFECT OF MATING ON THE RESPONSES OF Callosamia promethea TO SOUND. 



A careful perusal of the tables I-XII. shows that S. cecropia, 

 P. cynthia and C. promethea, respond to a long range of sound 

 waves. Since precautions were taken to prevent vibrations 

 reaching them through any medium other than air, it seems 



