Evilus (闇派閥) was a group of radical Familia led by Gods claiming to be evil. Currently, only the Thanatos Familia remains.
Evilus used to be a radical group that threatened Orario after the Zeus Familia and Hera Familia weakened in power and were subsequently exiled from the city. It was weakened by the efforts of the Guild along with various Familia, though it was finally destroyed when Ryuu destroyed the Rudra Familia as a part of her rampage.
The Ikelos Familia was rumored to be one of the Familia within Evilus, however this was revealed to be false as the Familia's dealings with Evilus were done to gain manpower and funds for the work on Knossos.