I. M.  Raichev, ?New species from family Staphylinidae (Coleoptera) for Bulgarian fauna?, Acta Zoologica Bulgarica, vol. 30, pp. 64-67, 1986.

I. M.  Raichev, ?New records of Staphylinidae (Coleoptera) from Bulgaria?, Acta Zoologica Bulgarica, vol. 49, pp. 100-101, 1997.

I. M.  Raichev, ?New and rare staphylinids from Bulgaria (Coleoptera, Staphylinidae) ?, Acta Zoologica Bulgarica, vol. 13 , pp. 81-84, 1979.