Vikberg, V. and Viitasaari, M. (1991) “<i>Trichiosoma nanae</i> sp. n., a monophag on <i>Betula nana</i> from Finland (Hymenoptera, Cimbicidae)”, Entomologica Fennica, 2(2), pp. 67–77. doi: 10.33338/ef.83537.