Fig. 5

Male mating time and callus colour profiles of F25 hybrids. a Mating time profile of F25 males. Relative mating time is the number of hours from the onset of dusk, where negative values are before dusk. Black bars represented dusk mating and light grey bars early mating; (b) callus colours amongst the early mating F25 males; (c) callus colours amongst dusk mating F25 males. Numbers above the bars are the total number of individuals observed in each callus colour class across three replicate lines. The proportions were averaged across three replicate lines and the standard deviation of the proportion across the three replicate lines was included on each bar