1983] 
Pesach & AUoway — Harpagoxenus americanus 
155 
Figure 1 - Set-up date, duration of nestmate 
exchange until date of fusion. 
NO. OF 
QUAD. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
f 
1 
\ 
f 
k 
, ' 1 
J 
\ 
1 
T 
1 
1 
k 
T 
1980 
1981 
10 20 30 10 20 30 10 20 30 10 20 30 
MAY JUNE JULY AUGUST 
I 
\ set-up date 
I nestmate exchange until fusion. 
