402 



QROTE — COCOON OF TELEA POLYPHEMUS. 



[Oct. -iy 



In my work on the Saturnians or Emperor Moths, pp. 15-16, 

 published by the Roemer Museum in June, 1896, I tried to corre- 

 late the spinning of an attachment with the increasing breadth of 



Fig. I. Cocoon of Te/ea polyphemus with attachment. 



wing in the perfect insect. Evidently these large-winged creatures 

 experience the same difficulty in rising from the level ground as 

 do the bats and the swallows. To fly, they must feel the air 

 beneath their wings. It thus became an object, or an advantage. 



