Figure 4.

Parthenogenesis and flightlessness. The points show the percentages of parthenogenesis and flightlessness for each insect order. Grey points indicate orders where flightlessness is found in both sexes, red points those where flightlessness is restricted to females and blue points where it is restricted to males. Orders with a relatively high percentage of parthenogenesis (>0.2%) are identified with an icon of a representative species. The line plots the model prediction from a quasibinomial linear model of the relationship using the statistical package R.