Figure 4 in The parasitoid complex associated with the herbivore Hadena bicruris (Lepidoptera: Noctuidae) on Silene latifolia (Caryophyllaceae) in the Netherlands

Figure 4. Average sex ratios (proportion males in brood) for different secondary clutch sizes (all larvae on a host) of M. tristis (A, averages calculated over two consecutive clutch sizes) and B. variator (B) in H. bicruris. The dashed line is the correlation between sex ratio and clutch size of M. tristis as derived from a generalized linear model on the underlying raw data. The horizontal lines indicate the overall average sex ratios. Numbers on top of the graphs give the number of observations on which the averages are based.