The ladybird spider (Eresus kollari,), is a spider species in the family Eresidae.

It is one of the three species into which Eresus cinnaberinus or Eresus niger has been divided.

Eresus kollari keep the remains of their prey stacked in the web. The females use the same burrow throughout their whole life. The prey can be large like tenebrionoid beetles, up to 32.5 mm long. Whereas males can be seen in the open on dry bare ground in daytime, the females oftn remain hidden within burrows. Preci, Sibillini, Umbria, Italy May 2018