This file contains data from experiment 2. Column headings: TripID: foraging trip ID Date: experiment date Time: Time when a howkmoth first visited a experimental flower during a foraging trip. GenetID: ID of experimental plants Type: H. fulva, F2 hybrid between H.fulva and H. citrina visits: visitation rate of hawkmoths per flower per foraging trip SCC: flower colour of the central part by a simple matching with the standard colour chart (SCC) of the Royal Horticultural Society, London, England. Discriminant score of centre: Discriminant score of central part. Lower and higher discriminant scores represent H. fulva-like and H. citrina-like flower colours, respectively. Discriminant score of periphery: Discriminant score of peripheral part. Lower and higher discriminant scores represent H. fulva-like and H. citrina-like flower colours, respectively. Bullseye contrast: Euclidean distance between two colour coordinates of the central and peripheral parts. Background contrast: Euclidean distance between colour coordinates of the peripheral part of an individual flower and that of the green foliage background. Scent intensity: floral scent intensity measured by a handheld odour meter Corolla orientation (degree): angle between a flower’s main axis (from the floral base to the tip of pistil) and the horizontal Stem height (cm): stem height (from the ground to the top of an inflorescence)