The cockroach genera Beybienkoa, gen. nov., Escala Shelford, Eowilsonia, gen. nov., Hensaussurea Princis, Parasigmoidella Hanitsch and Robshelfordia Princis (Dictyoptera: Blattaria: Blattellidae). Invertebrate Taxonomy, 5(3) 1991: 553-716. 665 [Zoological Record Volume 128]