1983] 
Calahi, Traniello, and Werner — Pheidole 
403 
A E 
B 
F 
C 
G 
D 
H 
N > > ^ A 
Figure I. Relative performance measures (RPM) of various beha\iors in the 
r.epertories of major (MJI-MJ4) and minor (A-Q) workers of Pheidole horiensis. 
Roman numerals I-V correspond to w'orker age classes. 
Additional details in Materials and Methods. 
