HOW INSECTS WORK IN GROUPS — SUDD 495 



Search Order 



they move over the shoots until one 

 is successful and starts to feed 



the smell of damaged tissues causes 

 larvae to collect to exploit the gap 



they wander over the leaf but stay 

 where bending is advanced (at apex) 



this collective effort at places of 

 success gives a typical rolled nest 



unsuccessful, some move av/ay while 

 others change their angle of puil 



these changes turn the prey to a 

 position suitable for transport 



on this and the facing page. Starting in disorder, insects search at random until they are 



estabUshed in the group. 



