1983] 
Buschinger & Francoeur — Symmyrmica 
299 
Single mutica workers or groups with and without brood were 
found nearly everywhere in that area when we dug a few centimeters 
into the soil. 
The first site, the southernmost one (Fig. 1), yielded just 30 chain- 
berlini workers and intermorphs, but no brood (colony no. 1 in the 
following). In the second site, about 6 m to the north and beyond 
the willow brush, we found a chamberlini nest (no. 2) about 15 cm 
below the surface, in the soil and surrounded by larger tunnels with 
mutica workers and brood. The chamberlini nest contained larvae 
and prepupae, about 38 workers and intermorphs, two wingless 
males, and one male pupa. The prepupae from this colony were used 
for a karyotype study. In the third site, again about 6 m to the north, 
in the garbage dump, we found a chamberlini nest (no. 3) with about 
30 workers and intermorphs, pupae, prepupae, and larvae. One 
dealate female was detected but escaped capture. The relative 
importance of intermorphs for our samples is given in table 1 in 
comparison with Wheeler’s data. 
Fig. 1. The chamberlini site on the east bank of Jordan River, looking southward 
(upriver). 
a) Site of chamberlini colony no. 1 within a Manica colony 
b) Site of another Manica colony which extended along the willow brush to the 
right 
c) willow brush between chamberlini colonies 1 and 2 
