Wingspan male 30–36 mm, female 38–45 mm.
The male has a broad ocher-orange forewing while in the female it is red-brown. The wing patterns are similar in both sexes, in the disc area there is a round, sharply defined white spot, and the postdiscal area is bordered by a faint, sometimes absent inner transverse line and a clear outer transverse line.

Females always lay their full egg complement into one egg batch. Females lay eggs in deposits of approximately 50 to 300 on the twigs of host plants. The eggs hatch in early spring, along with bud break of Prunus spp. and Crataegus spp.

The egg clutch overwinters under the female's anal wool on a branch, often in a fork of a branch, usually laid on Prunus spinosa.
The caterpillars of the first larval stage hatch in April, which is phenologically correlated with the stage of fully developed buds in blackthorn. After hatching, the young caterpillars build a silky coating together on a branch, which provides protection against predators and helps maintain optimal body temperature in cool spring conditions, the nest has an important role in the thermoregulation of the colony.
When young, they lead a gregarious lifestyle, staying on the surface of the web in a synchronized manner, in smaller or larger groups, leaving it when feeding. In the penultimate instar, they finally leave the web to lead a solitary life. After the last molt which is around mid-May towards early June, the mature larvae disperse and feed also on other deciduous trees like Quercus, Crataegus, Salix, Ulmus, etc ...
Pupation occurs in a dense cocoon on the ground or in litter at the base of the host plant. Artificial light is generally ineffective in attracting the imagos, so they are hardly captured when using light traps.

The young larva lives mainly on Prunus and Crataegus, later when mature also on other deciduous trees like Betula, Pyrus, Populus, Ulmus and Berberis.

It inhabits limestone grasslands and shrubs, scrub-rich grasslands, open forest edges, sparse forests with clearings, hedgerow areas, and semi-natural areas within agricultural landscapes.