Individual T. fulviventris foragers were evaluated for their flower constancy with respect to floral scent and were shown to have definite and specific preferences for a single floral scent. In one study, between 78 and 87 percent of foragers were observed to visit flowers that had the same distinct floral scent during successive foraging events, suggesting that chemical cues are important to flower constancy. Furthermore, T. fulviventris foragers were more likely to favor the same floral scent as the first forager to return to the nest, indicating that T. fulviventris foragers carry and relay food odors to other foragers inside the nest. When presented with flowers of different coloration, foraging T. fulviventris individuals seemed to distinctly prefer one color to the others, indicating that visual components are also important to flower constancy.
