Fig 16 a Brief apparition of a nymph of Guyalna chlorogena after opening the summit of its turret (October 2, 2014); its head is covered with clay softened with its own urine; postclypeus (cly) and eye (ey) are perceptible under the clay. b Outlet orifice afterthe nymph left its building. c Anymph exits; its subsequent way down and its 180̊ rotation is depicted with the red line, d The nymph, after it traced back, as depicted with the yellow line, has stopped and is ready to molt. Panels c and d were made with images captured from a video by Vanessa Gama.