; subclass Pterygota, order Blattodea)
Monotypic family comprising the semi-social Cryptocercus punctatus (wood-eating cockroach), an insect which is 2–3 cm long, and is notable for feeding on rotting wood. It shows remarkable similarities to the Isoptera, and both share a similar gut fauna of protozoans that break down cellulose. The wood-eating cockroach occurs in N. America and eastern Asia.
Subjects: Zoology and Animal Sciences.