Brightness values, foraging time, and the four morphological traits measured for ant species examined in this study.

Brightness values are given as mean ± 1 SE (number of workers) (see text). Morphological measures are given as mean (± 1 SE) (also see Figs 5 & 7–9); for the three eye traits, values on the first line are raw data, values on second line are estimated marginal mean values using mesosoma length as a covariate in a multivariate analysis-of-covariance. Species are listed alphabetically by subfamily, genus, and species within each genus. Taxonomy follows Bolton [59]; species followed by a number are undescribed or in the process of revision [see 45]. Pale species in normal font; dark species in bold font (see text).