“…Although such receiver‐mediated selection can produce very precise mimicry, as in the visual mimicry (wing colouration—Llaurens et al, ) and locomotory mimicry (wing‐beat frequency—Srygley, ) of Heliconius butterflies, there are cases where mimicry appears incomplete (Penney, Hassall, Skevington, Abbott, & Sherratt, ; Ruxton, Sherratt, & Speed, ; Thurman & Seymoure, ). Nonetheless, when approximate resemblance to a model is functional, receivers will still exert selection on mimics to maintain existing resemblances (de Jager, Newman, Theron, Botha, & Anderson, ; Kikuchi & Pfennig, ).…”