Pheidole pallidula is a very variable species, and a little about its variability is shown here in the form of major worker heads from different localities in the Iberian Peninsula.  read more »

Monomorium destructor is similar to Monomorium latinode, but distinguished from it by the presence of 4 teeth on each mandible (versus 5 in latinode), the distinct metanotal groove (shallow and indist  read more »