Figures 2–5 in Stingless bees in Miocene amber of southeastern China (Hymenoptera: Apidae)

Figures 2–5. Directions and terms of orientation for corbiculate apine metatibiae. 2. Frontal view of metatibia and metatarsus of worker of Apis (Apis) mellifera Linnaeus, oriented as it would be if extended straight laterally from body to identify serially homologous surfaces. 3. Posterior view of metatibia and metatarsus of worker of Cephalotrigona capitata (Smith), oriented as leg in figure 2. 4. Frontal view of figure 2 except oriented as leg would be positioned in life. 5. Frame capture of worker of Heterotrigona (Heterotrigona) itama (Cockerell) from Brunei (M.S. Engel, 1 September 2018) showing orientation of hind leg in life and direction of particular surfaces.