Tilgate Zoo

Madagascar hissing cockroach

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Invertebrates

Scientific name

Gromphadorhia portentosa

Size and weight

5 to 10 cm long

Diet

Rotten fruit, vegetation and detritus

Conservation status

Least concern

Native habitat

In rotting logs and leaf litter on the forest floors of Madagascar

Lifespan

2 to 5 years

Meet our Madagascar hissing cockroaches

Tilgate Zoo is home to lots of Madagascan hissing cockroaches. Their main enclosure if off-show, but they can regularly be spotted out with the Education Team, meeting school groups and the public and teaching them all about insects and how important they are.

Want to meet our fascinating cockroaches and learn more about them? Why not book onto our scales and shells experience on the link below.

About Madagascar hissing cockroaches

The Madagascar hissing cockroach is one of the largest species of cockroach in the world. Unusually for a cockroach, they don’t have wings. But they can hiss! They do this by forcing air through their bodies, mimicking a snake to scare off predators.

They are very helpful little creatures. They eat all kinds of organic stuff, from rotting plants to animal droppings – which helps return nutrients to the soil.

To grow they must shed their hard outer shells (called exoskeletons) and form a new, larger one. When they first shed, the new exoskeleton is bright white and soft, but they toughen up and darken over time.

Did you know?

  • they are excellent climbers and have spiky legs to help them climb trees. They can walk upside down while hanging from branches and can even scale smooth glass

  • males have horns on the tops of their heads for fighting
  • there are over 4,000 species of cockroach and over 99 per cent are not pests and do a great job of helping look after the planet

  • in fights over territory, males make themselves as tall as they can and hiss, push and shove each other. The male that is larger and hisses more usually wins