Oecologia (2004) 139:255–266

In the legend to Fig. 2 a number of symbols were wrongly described. The correct version is as follows:

Fig. 2 Dolichoderinae (yellow): filled square Dolichoderus (plesiomorphic proventriculus), filled circle Azteca (sc sclerotized cupola with occlusory tract), filled inverted triangle Forelius (sc, reflexed), open square Technomyrmex (sc, reflexed), open circle Tapinoma sessile (sc), filled diamond Dorymyrmex (sc, reflexed). Myrmicinae (blue): open circle Crematogaster, open triangle Cephalotes, open square Cataulacus, open inverted triangle Megalomyrmex, filled diamond Myrmicaria (sclerotized portal), ...