1988] 
Binder — Aggression in Heterotermes 
125 
Figure 1. Arena for simulated foraging tests of conspecific, intercolonial aggres- 
sion of Heterotermes aureus. 
abdomen was exposed to a freely moving soldier. Similar observa- 
tions were made of worker behavior when soldiers were immobi- 
lized with only the abdomen or only the head exposed. Ten pairings 
in each of the four categories were made. 
