Relationships of the anthicid subfamily Lagrioidinae are discussed in detail and evidence presented supporting treatment of this group as a distinct family, Lagrioididae, stat. nov., of Tenebrionoidea, unrelated to the family Anthicidae. Lagrioida rufula Fairmaire & Germain, 1860 is designated as the type species of Lagrioida Fairmaire & Germain, 1860. Two new Australian species, L. norfolkensis Lawrence & Ślipiński sp. nov. (Norfolk Island) and L. tasmaniae Lawrence & Ślipiński sp. nov.(Tasmania and Victoria) are described and illustrated. All remaining species are redescribed and key to the species is provided.