1987] Shat tuck — Pogonomyrmex occidentalis complex 171 
Figs. 23-26, distribution of character states. Fig. 23, Gaster states for P. occiden- 
talis. Fig. 24, Gaster states for P. salinus and P. owyheei. Fig. 25, PetDor states 
for P. occidentalis. Fig. 26, PpDor states for P. occidentalis. 
