Figure 5 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem

Figure 5. (a) concrete moulding inside an 88 cm deep well, 26 cm of which have been excavated. The curvature (circle), just below the ground level, is clearly visible. The turret is traced (tur). (b) oblique galleries (gal) at the base of the well, oblique as well, up to a curvature at 15 cm from the bottom; cem: Cement moulding.