Figures 15–18 from: Müller A, Mauss V, Prosi R (2017) Unique nest architecture in the North African osmiine bee Hoplitis (Hoplitis) mucida (Hymenoptera, Megachilidae). Journal of Hymenoptera Research 60: 99-109. https://doi.org/10.3897/jhr.60.20218

Figures 15–18 - Morphological differences in the female sex between Hoplitis mucida (left) and H. stecki (right) (see Table 2): 15–16 Vertex 17–18 Pilosity of tergal discs.