Two new species of Xestoblatta from northern Brazil are described, Xestoblatta
buhrnheimi
sp. n. and Xestoblatta
rondonensis
sp. n., included in the buscki group Gurney (1939), and new characters are added to the description of Xestoblatta
mamorensis Lopes & Oliveira, 2006. Xestoblatta
roppai Rocha e Albuquerque-Silva & Fraga, 1975, from midwestern Brazil is redescribed, including its genital characters which were not previously described. Additionally, a key for the species of this group is provided, and photographs are given of the species in the habitus, of tergal modifications, and of the genitalia.