Armadillo Lizard Diet: What Armadillo Lizards Eat

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Armadillo Lizard Diet in the Wild

Armadillo lizards (Ouroborus cataphractus) live on a narrow menu in South Africa’s Western Cape. A captive armadillo lizard diet has to work around that same slow, cautious biology. Southern harvester termites, Hodotermes mossambicus, are the most important wild food source.

Termite consumption spikes after spring rains bring swarms above ground. Beetles, millipedes, and scorpions fill in the rest of the diet. The lizards also eat small amounts of leaves and fruit when termites are scarce.

Foraging away from a rock crevice carries risk. The South African National Biodiversity Institute records foraging trips of up to 18 meters from the home crevice.

This lizard’s main defense is curling into a ring and biting its own tail. It feeds in short, concentrated bursts when termites swarm, then retreats.

That link between food and the tail biting defense explains a lot about captive feeding. Keepers copy this boom and bust pattern instead of a daily schedule.

Armadillo lizards also live in groups, an unusual trait for a lizard. SANBI reports communal crevices of around 60 individuals. Researchers have found evidence that adults may share food with juveniles in the same crevice.

Seasonal Feeding and Natural Fasting

Armadillo lizards are most active in the wet season. That runs from late autumn through spring in their native range, when termites are abundant. Activity and appetite drop sharply during the dry Cape summer.

The lizards can go weeks with little to no food during that dry stretch. Animal Diversity Web describes a notably low resting metabolic rate and very low activity level in that period. The pattern reverses once winter rain returns.

This fasting ability matters for captive care. It explains why an adult needs far fewer meals than a bearded dragon or leopard gecko of similar size. Feeding an adult every single day, all year, ignores that biology.

A schedule of two or three meals a week suits most adults. The table below sets out that schedule by age. It mimics the natural armadillo lizard diet rhythm instead of fighting it.

Captive Diet: Staple Feeder Insects

A pet armadillo lizard diet should center on a rotation of feeder insects. No single species covers every nutrient this lizard needs. Variety also keeps a naturally selective eater interested in food.

• Dubia roaches: low in fat, easy to gut load, and a good size for most adult and subadult lizards.
• Crickets: a solid staple within a day or two of purchase. Older crickets lose nutrition and can bite a lizard overnight.
• Black soldier fly larvae: naturally high in calcium, which helps offset the calcium to phosphorus ratio of most other feeders.
• Mealworms and superworms: fine for subadults and adults in moderation. Their tough exoskeleton is hard for small juveniles to digest.
• Silkworms and hornworms: soft bodied and high in moisture, which also supports hydration.

Waxworms make an occasional treat, once every week or two at most. Their fat content encourages weight gain in a species built to survive on lean termites for much of the year. Order live feeder insects sized no larger than the space between the lizard’s eyes to avoid choking risk.

Feeding Schedule by Age

Feeding frequency should drop as an armadillo lizard matures. The Merck Veterinary Manual’s general lizard guidance is daily feeding for juveniles and at least every other day for most adults.

Keepers stretch the adult interval for this species. The reason is the low resting metabolic rate and seasonal fasting that Animal Diversity Web documents.

The table below reflects that common keeper practice, not a published feeding trial, since none exists for this species.

Watch body condition, not just the calendar. A lean, active lizard can stay at the shorter end of an interval. One with visible fat pads should move to the longer end, regardless of age.

Calcium, Vitamins, and Gut Loading

Dust every feeder insect with calcium right before feeding. The Merck Veterinary Manual notes that insects need a calcium rich diet themselves, plus a dusting of high calcium supplement immediately before they are offered. This two step process helps prevent nutritional deficiencies in insectivorous reptiles.

Skipping this step is a leading cause of metabolic bone disease in captive lizards. Calcium powder with D3 covers the gap for lizards with limited UVB exposure. Lizards under strong UVB lighting can use calcium without D3 most of the time instead.

Gut loading means feeding the feeder insects a calcium rich diet before they become prey. Merck notes that ordinary insects carry only 0.03 to 0.3 percent calcium.

Phosphorus runs 0.8 to 0.9 percent. Three days on a 12 percent calcium diet brings the ratio to about 1.2 to 1.

Multivitamin powder covers vitamin A, vitamin D, and B complex nutrients. Plain calcium dusting does not supply those on its own.

Once or twice weekly is a common keeper standard for adults under adequate UVB. Growing juveniles get it slightly more often.

Multivitamin supplement powder should never fully replace a varied prey list. No single product covers every nutrient found in a wild diet. Rotating feeder species does more for long term health than any supplement alone.

Water for Armadillo Lizards

Keep a shallow, sturdy water dish in the enclosure at all times. Refresh it daily, even though this species evolved in a dry, rocky habitat. Many individuals drink readily from standing water despite coming from an arid part of the Western Cape.

Light misting two or three times a week adds another water source. Some individuals prefer to lap droplets directly off rock surfaces or enclosure walls. Offer both options rather than relying on the dish alone.

Foods to Avoid

Wild caught insects carry pesticide residue and parasite risk. Keep them out of an armadillo lizard diet entirely. Fireflies are toxic to reptiles and must never be offered under any circumstance.

Insects collected near roadsides, treated lawns, or ornamental gardens carry that same risk. They can look identical to store bought feeders while carrying hidden chemicals. Buy feeders from a dedicated supplier instead of collecting them.

Fruit and vegetables make up only a small part of the wild diet. They are not a substitute for insect protein in captivity. Dairy, cooked meat, and food made for mammals offer nothing this lizard can use.

Avoid feeding anything wider than the lizard’s head. Oversized prey is a common cause of regurgitation in this species. It can also lead to impaction if swallowed whole.

Overfeeding and Obesity in a Slow Species

Armadillo lizards gain weight quickly once food is reliably available. That trait served them well in the wild. It works against them in a terrarium with a constant food supply.

Watch for visible fat pads at the tail base. A rounded midsection that hides the ridges of the dorsal scales is another sign. Reduced activity often comes along with both.

Correcting an overweight armadillo lizard diet usually means three changes. Stretch out the feeding intervals. Cut fatty treats entirely, and lean on lower fat staples such as dubia roaches or black soldier fly larvae.

Obesity is more common in captivity than starvation for this species. Captive lizards rarely get the exercise or seasonal scarcity that wild ones face. A lizard that skips food for a week or two, especially in cooler months, is often just fasting on instinct.

Persistent weight loss is a different story. Watch for lethargy or a sunken tail base alongside it. That combination calls for a visit to a reptile veterinarian.

For the rest of daily husbandry that supports healthy feeding, see the armadillo lizard care guide.

Feeding dishes, hides, and the rock crevices this social species needs are covered in the enclosure guide.

Adult size, which sets prey size, is on the size page. Feeder and supplement budgets are on the cost page.

The species is on CITES Appendix II, so international trade is regulated. Buy captive bred animals only, and compare its close relatives on the girdled lizard page.

Frequently Asked Questions

What do armadillo lizards eat in the wild?

Wild armadillo lizards eat mostly southern harvester termites. Consumption peaks in the weeks after seasonal rains bring swarms above ground. Beetles, millipedes, scorpions, and small amounts of plant material fill in when termites are scarce.

How often should I feed my armadillo lizard?

Feed hatchlings and young juveniles daily, subadults every other day, and adults just two to three times a week. This armadillo lizard feeding schedule mirrors the species’ natural boom and bust rhythm. It also helps prevent the obesity this slow moving lizard is prone to in captivity.

What is the best armadillo lizard food for a pet?

Dubia roaches and black soldier fly larvae make strong staple armadillo lizard food choices. Both are lower in fat and naturally higher in calcium than crickets or mealworms. Rotate two or three staples and add occasional soft bodied treats like silkworms for variety.

Do armadillo lizards need calcium and vitamin supplements?

Yes, dust every feeder insect with calcium before it goes into the enclosure. Captive feeders rarely match the calcium content of wild prey on their own. A separate multivitamin once or twice a week fills in vitamin A, D, and B complex nutrients.

Can armadillo lizards eat mealworms?

Adult and subadult armadillo lizards can eat mealworms in moderation. The worm’s tough exoskeleton makes it a poor choice for small juveniles still building digestive strength. Superworms carry the same limitation and work best as an occasional addition.

Why is my armadillo lizard refusing food?

A short refusal, especially in cooler months, usually reflects this species’ natural fasting period rather than illness. Watch for other warning signs too. If the lizard also loses weight, grows lethargic, or shows a sunken tail base, see a reptile veterinarian rather than waiting it out.