A small, attractively banded Caribbean millipede that is hardy, prolific, and forgiving, making it a great beginner species. It thrives in a colony and readily breeds in a well-maintained bioactive enclosure.
ℹ️
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Small to medium millipede, about 5-9 cm (2-3.5 in) long, with striking black-and-yellow banding.
Lifespan
3–7 years
Social needs
group
Native region
Caribbean / Central America
Origin
New World
Climate
🌴 Tropical
Family
Rhinocricidae
Genus
Anadenobolus
Part of the Millipedes
Gentle, detritivorous arthropods that recycle leaf litter and rotting wood. Hardy and low-maintenance, they make excellent display and beginner invertebrates.
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Photo coming soon
Minimum
Juvenile millipede setup
5–10 gal with 3–4 in leaf-litter substrate
Bumblebee millipedes (Anadenobolus monilicornis) are small, social, peaceful detritivores — coco-fibre + rotting leaf litter substrate, cuttlebone for calcium, and a shallow water dish.
Photo coming soon
Recommended
Group millipede enclosure
10 gal with 5 in leaf-litter substrate
Best kept in groups of 5+. Deep mix of coco-fibre, decaying hardwood leaves, and rotten wood — they eat the substrate itself. Cuttlebone or eggshell for calcium-rich exoskeletons.
Photo coming soon
Ideal
Bioactive leaf-litter habitat
20 gal long bioactive, 70–80% RH
Bioactive enclosure with springtails, tropical isopods, deep leaf-litter substrate, and live plants. Self-sustaining once established; bumblebee millipedes will breed and thrive long-term.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Photo coming soon
Egg
These invertebrates lay eggs — often in a guarded clutch, a silk sac (spiders), or a brood (carried by female isopods). The eggs are small and soft and develop without a true larval or pupal transformation.
Photo coming soon
Juvenile
Juveniles hatch as miniature versions of the adult and grow by molting their exoskeleton (or, in snails, by enlarging the shell). They gain size, segments, or leg pairs and gradually take on adult coloration with each molt.
Adult
Adults reach full size and reproductive maturity with the species' mature form and coloration. Many arachnids and myriapods continue to molt as adults, and sexes can differ in size or in specialized appendages.
Habitat & enclosure
A 5-10 gallon (20-40 L) tub or terrarium comfortably houses a small colony. Provide deep moist substrate (10-15 cm) for burrowing, plus leaf litter, cork bark, and hides. Keep warm and humid: 22-27 C (72-81 F) and 70-85% humidity, with good ventilation to prevent stagnation. Note: this species is established as a non-native/invasive in parts of the southern US (e.g. Florida), so never release captives outdoors.
Substrate
A deep bioactive mix of crushed decaying hardwood leaves, rotten wood, coco fiber, and a little organic topsoil, kept evenly moist (not waterlogged). Springtails and isopods make excellent cleanup-crew companions and help process waste.
Equipment & setup
No heat is usually needed at normal room temperature; a low-wattage heat mat on a thermostat helps in cold homes. No UVB required. Useful gear: a spray bottle for misting, a hygrometer, a secure ventilated lid, and a cleanup crew of springtails/isopods to keep the substrate healthy.
Diet
A detritivore that eats decaying hardwood leaf litter (oak, maple, beech) and rotting white/brown wood as the dietary base, supplemented with vegetables (cucumber, squash, sweet potato) and occasional calcium (cuttlebone). Decomposing leaves and wood must always be available — they are the core of the diet, not a supplement.
Behavior & temperament
Peaceful, harmless, and slow-moving. It does not bite, but like many millipedes it can secrete a mildly irritating defensive fluid (containing benzoquinones) when stressed, so wash hands after handling and avoid touching the eyes. Gentle, brief handling is tolerated. Communal and gregarious — happily kept and bred in groups. Largely active at night and after the substrate is misted.
Health
Very hardy. The main risks are substrate that is too dry (causes failed molts and death) or too wet/stagnant (mold, mites). Grain mites and phorid flies can appear if uneaten produce is left to rot — remove leftovers promptly. Provide calcium for healthy molting. A pest-mite outbreak is best controlled with predatory mites and improved ventilation.
Tips, DIY & hacks
Stock the enclosure heavily with leaf litter and rotten wood before adding millipedes, and let it 'mature' a couple of weeks. Keep one half wetter than the other for a moisture gradient. Add cuttlebone for molting calcium. Because it is invasive in parts of the US, keep the enclosure secure and never release or dump used substrate outdoors.
