mˈeɪl sˈiː. jˈuːɹɪθˌiːm hæv ɐ vˈɪʒuːəl kjˈuː ˌʊltɹɐvˈaɪəlɪt ɹᵻflˈɛktəns ænd ɐn ɑːlfˈæktɚɹi kjˈuː fˈɛɹəmˌoʊnz, bˈoʊθ ʌvwˈɪtʃ ɑːɹ sədʒˈɛstᵻd təbi ɪmpˈoːɹtənt ɪn mˈeɪt tʃˈɔɪs.
Male C. eurytheme have a visual cue (ultraviolet reflectance) and an olfactory cue (pheromones), both of which are suggested to be important in mate choice.