1983] Kwait & Topoff — Slave-making ants 311 
TIME 
Figure 2. (A) Activity of Polyergus lucidus during colony emigration. The two 
consecutive peaks in afternoon activity represent emigration raids conducted on the 
old nest by Polyergus workers that were transported to the new nest by Formica 
individuals. (B) Activity of P. lucidus during typical slave-raid day. Note the sim- 
ilarity in timing of slave raids and emigration raids. 
