378 
Psvche 
[Vol. 85 
HEAD WIDTH (mm.) 
.46 48 50 .52 54 56 .58 60 ,62 .64 .66 .68 .70 
! I 1 I 1 1 1 1 1 1 1 I I 
REST 
SELF-GROOM 
MOVE INSIDE NEST 
INSPECT EGG 
GROOM EGG 
CARRY EGG 
INSPECT LARVA 
GROOM LARVA 
CARRY LARVA 
REGURGITATE W/LARVA 
ASSIST LARVAL ECDYSIS 
INSPECT PUPA 
GROOM PUPA 
ASSIST ADULT ECLOSION 
ANTENNATE W/WORKER 
ANTENNATE BODY 
REGURGITATE W/WORKER 
ALLOGROOM WORKER 
BE GROOMED 
ANTENNATE QUEEN 
LICK NEST WALL 
GUARD NEST ENTRANCE 
INSPECT EXUVIUM 
CARRY EXUVIUM 
EAT EXUVIUM 
HANDLE NEST MATERIAL 
FORAGE 
MOVE OUTSIDE NEST 
CARRY PREY 
EAT PREY 
INSPECT PREY 
FEED IN NEST 
FEED OUTSIDE 
INSPECT FOOD 
DRINK 
• 

♦ 
Figure 4. Head width distributions for workers exhibiting behaviors in the etho- 
gram. Means and standard deviations are plotted. 
