Figure 4. Frequency of 26 ant species collected in pitfall traps in Tallahassee. (a) Percentage of pitfall traps (n = 80) in which each species was trapped. (b) Percentage of all ants trapped (n = 2,493). Species marked with diamonds are nonnative. Solenopsis invicta and Pheidole obscurithorax were the most common ants trapped, and six of the most common ants are introduced.