Fig. 7. Micrographs of the propleuron of female representatives of apine bees, lateral view, anterior to the left. (a) Centris analis (Fabricius, 1804). (b) Euglossa cordata (Linnaeus, 1758). (c) Bombus pauloensis Friese, 1913. (d) Tetragonula carbonaria (Smith, 1854). (e) Apis mellifera Linnaeus, 1758. (f) Schematic representation depicting the general anatomy and relative positions of the elements of the complex of the propectus. Solid arrow indicates the propleuron in lateral view. Arrowheads indicate morphological conditions coded as character states. Scale bars: 0.1 mm.