Fig. 3. Male mating responses to female dummies in direct sunlight and in the shade when (A) the two dummies were placed 15 cm apart (see Fig. 1A) and (B) when the two dummies were placed 2 m apart (see Fig. 1B). (C) Logarithmic plots of reflection spectra of the ventral side of a female wing in the sunlight (solid line) and in the shade (dotted line). (D) Same spectra as in C, normalized and plotted on a linear scale.