Contributions to the cockroach genus Antitheton Hebard (Insecta, Blattodea), with confirmation of its familial placement in Pseudophyllodromiidae

Fresh material from the enigmatic and poorly known cockroach Antitheton iniquiungues Hebard, 1919, the sole member of the genus Antitheton Hebard, 1919, is revised. The male genitalia is examined and illustrated, and since the genital hook is placed on the right side of the genital complex, its placement in the family Pseudophyllodromiidae Hebard, 1929 is confirmed. Given the morphology of the subgenital plate and the extreme modification of the styli, it is comfortably placed in the subfamily Plectopterinae Saussure & Zehntner, 1893.