Fig. 3: Siltstone rock substrate with borings and living nymphs of the rock-boring mayfly species Languidipes lithophagus sp. nov. from the middle reaches of the Bago River, Myanmar.
From: Bioerosion of siliceous rocks driven by rock-boring freshwater insects
a Rock fragment with borings (lateral view). b Rock fragment showing apertures (circular openings) and partly eroded borings (plan view). c Rock surface with apertures and partly eroded abandoned borings. d Living nymphs in their borings. e Living nymph in its boring. The white arrow shows a fragment of a silky substance covering the inner side of the boring. Scale bars = 10 mm (a, c), 20 mm (b), and 5 mm (d, e). (Photos: Ilya V. Vikhrev).
