Fig. 5: Morphological features and neoichnological model of the rock-boring mayfly species Languidipes lithophagus sp. nov. traces from the middle section of the Bago River, Myanmar.
From: Bioerosion of siliceous rocks driven by rock-boring freshwater insects
a Close-up view of the apertures (plan view). The white arrows show minute fractures tracing the upper layer of the borings. The yellow arrows show larger fractures corresponding to the initial stage of rock erosion leading to the origin of grooves (i.e., borings, the upper layer of whose was lost). b Plan view of a groove with concave bottom originated via partial erosion of the boring. The groove bears fragments of a silky substance produced by the tracemaker (shown by white arrows). c Transverse cross-section of the borings showing their circular tunnel-like shape. Neoichnological model of the boring: lateral view of the longitudinal section (d) and plan view of the two apertures at the rock surface (e). Orange filling indicates the boring. Scale bars = 10 mm (a) and 5 mm (b–e). (Photos: Artyom A. Lyubas; Graphic Art: Ivan N. Bolotov).
