Zebras & Other Armadillidium Isopods

Armadillidium is one of the most well-known genera of isopods and includes many popular species kept by hobbyists around the world. These isopods are often called “pill bugs” because they can roll into a tight ball when disturbed, a defensive behaviour known as conglobation.

Species such as the Zebra Isopod (Armadillidium maculatum) are especially popular thanks to their striking patterns and hardy nature. Armadillidium species are generally active, easy to care for, and highly adaptable, making them excellent choices for both beginners and experienced keepers.

Many Armadillidium species originate from Mediterranean and European habitats where they live under stones, bark, and leaf litter. In captivity they adapt very well to simple enclosures with natural materials and good ventilation.

Because of their hardiness and attractive colours, Armadillidium is often recommended as one of the best genera for people new to the isopod hobby.

What makes Armadillidium unique?

Armadillidium species are famous for their ability to roll into a ball when threatened. This behaviour protects their soft underside from predators and is one of the defining characteristics of the genus.

Common traits of Armadillidium species include:

• Ability to roll into a tight ball (pill bug behaviour)
• Rounded body shape with clear segmentation
• Active and visible behaviour in the enclosure
• Hardy and adaptable care requirements
• Wide variety of colours and patterns

Many species also display striking markings that make them attractive display isopods.

Habitat and enclosure setup

Armadillidium species are generally very adaptable and thrive in simple enclosures with good airflow and a balanced moisture gradient.

A typical Armadillidium setup should include:

• Deep organic substrate
• Plenty of leaf litter
• Pieces of cork bark or rotten wood for hides
• A calcium source such as cuttlebone or limestone
• A clear moisture gradient between one damp side and one drier side

Unlike many tropical species, most Armadillidium prefer slightly drier conditions with good ventilation.

Temperature and humidity

Armadillidium species are comfortable at normal room temperatures and do not require tropical heat.

Ideal conditions include:

• Temperature: 18–24°C
• Humidity: Moderate with a moisture gradient

Avoid overly wet conditions, as excessive humidity can lead to mould and poor ventilation.

Feeding Armadillidium isopods

Like most isopods, Armadillidium feed primarily on leaf litter and decaying wood. These natural materials should always be present inside the enclosure.

Occasional supplemental foods can include:

• Fish flakes
• Shrimp pellets
• Vegetables such as carrot or courgette
• Specialised isopod diets

Providing a calcium source is important for healthy moulting and shell development.

Popular Armadillidium species

Some of the most popular species include:

• Zebra Isopods (Armadillidium maculatum)
• Armadillidium klugii
• Armadillidium gestroi
• Armadillidium peraccae
• Armadillidium espanyoli
• Armadillidium depressum

These species vary in colour and pattern but generally share similar care requirements.

Discover Armadillidium isopods

Armadillidium species are some of the most accessible and enjoyable isopods to keep. Their hardy nature, interesting behaviours, and attractive patterns make them excellent additions to any collection.

Explore our Armadillidium species to discover colourful and characterful pill bugs for your enclosure.