Brindled Pug

The wingspan is 19–22 mm. The length of the forewings is 10–12 mm. The forewing is elongate, the hindwing is small, with the distal margin almost straight from near the apex to behind middle. The forewing has a decided tinge of ochreous and there are strong dark vein-dashes proximally to postmedian line, those on the median veins especially well developed. Antennal ciliation not very long. — hirschkei Bastelb.[ab.], prevalent in the Middle Rhine district, is more weakly marked. Adult caterpillars are smooth and slender. They are coloured light grey to yellow-grey and show on the back large dark brown, diamond-like spots. The strongly jagged side stripes are also dark brown.

The adults fly in April and May [1]. The habitat is oak forests, mixed oak forests, oak avenues and parkland. In the Southern Alps, it rises to heights of 1100 metres. The larvae feed on oak and hawthorn.