The Madagascar hissing cockroach, also known as the hissing cockroach or simply hisser, is one of the largest species of cockroach, reaching 2 to 3 inches (5.1–7.6 cm) at maturity.
They are native to the island of Madagascar, where they are known to be found inside of rotting logs. It is one of some 20 known species of large roaches from Madagascar, many of which are kept as pets in the UK.
Unlike most cockroaches, they are wingless. They are excellent climbers and can scale smooth glass. Males can be distinguished from females by their thicker, hairier antennae and the very pronounced “horns” on their head. Females carry the ootheca (egg case) internally, and release the young nymphs only after her offspring have emerged within her. As in some other wood-inhabiting roaches, the parents and offspring will commonly remain in close physical contact for extended periods of time.
In captivity, these insects have been known to live up to 5 years. They feed primarily on vegetable material.

IUCN Red List status: Not Evaluated
Madagascan Hissing Cockroaches are a hugely abundant and successful species. Their populations are stable with few threats to them being impacted.