Figure 3 in Description of a new genus of primitive ants from Canadian amber, with the study of relationships between stem- and crown-group ants (Hymenoptera: Formicidae)

Figure 3. Bivariate plots (males). A) Scape length versus head length. B) Flagellum length versus head length. C) Scape length versus flagellum length. D) Pedicel length versus head length. E) Flagellomere 1 length versus head length. F) Flagellomere 2 length versus head length. (Note: Filled circles are crown-group ants; open circles are stem-group ants; regression lines for both groups (crown-group ants - solid line, stem-group ants - dashed line) are shown in cases where statistical difference between them was found).