Figure 13 in Morphological phylogeny of Megachilini and the evolution of leaf-cutter behavior in bees (Hymenoptera: Megachilidae)

Figure 13. Female mandible of leaf-cutter ants and extinct Baltic amber megachilids. A–C. Right mandible of leaf-cutter ant (Formicidae: Attini: Atta sp.) in frontal, lateral, and inner views, respectively. Arrow points to the lower margin. D–G. Synchrotron-radiation µCT scan of Glyptapis sp. (Glyptapini) from Eocene Baltic amber; facial view of the head and right mandible in outer, superior, and inner views, respectively [note that the scan resolution could not resolve the finest setae, such as those of the compound eyes which are present in this specimen as in all species of Glyptapis Cockerell (Engel, 2001)].