Pebble Prominent Notodonta ziczac
Wingspan 40-45 mm.
A common species, occurring throughout the British Isles, appearing as an adult between May and August in either one or two broods depending on latitude.
It frequents a range of habitats, but has a preference for damper localities, where the caterpillars feed on sallow (Salix) and poplar (Populus).
The caterpillar is greyish or brownish, and like most of the prominents, feeds with the tail segment held up in the air.