Male genitalia morphology of Leptidea sinapis reveals no significant intraspecific differences. One-way ANOVA for a. phallus length/vinculum width and b. saccus length/vinculum width. The sibling species L. reali is included as positive control. Only L. reali versus all L. sinapis groups is significantly different (p < 0.0001 for both analyses). The bars represent two standard errors. c. Canonical discriminant analysis based on phallus length, saccus length and vinculum width.
Lukhtanov et al. BMC Evolutionary Biology 2011 11:109 doi:10.1186/1471-2148-11-109