Table 2. Influence of male sound production on mating success in Z-type Ostrinia nubilalis.

		Female response
Male treatment a	N	Acceptance	Rejection	% mated
Sham	27	20	7	74
Muted	26	11	15	42

^aSham, ordinary scales on both mesothorax and forewings were covered with nail polish; Muted, sound scales on mesothorax and forewings were covered with nail polish (see Fig. 1). A significant difference in female response is found between the male treatment groups (Likelihood ratio test in a generalized linear model, binomial error with logit link, χ²_1,3 = 5.35, P = 0.021).