Machadocepheus leoneae sp. n., adult female. SEM observations. 1 dorsal view (1) 2 anterior zone of prodorsum, dorsal view (1) 3 posterior notogastral zone, dorsal view (1) 4 prodorsum, dorsal view (1) 5 fovea, posterior notogastral zone, dorsal view (2). Abbreviations: see “Material and methods”. Scale bar: 1 = 100 μm; 2 = 30 μm; 3–4 = 50 μm; 5 = 20 μm.