
Source: Wikimedia Commons
Orthoporus ornatus
A large millipede from the arid southwest of North America. Usually dark brown but sometimes yellowish, with a different look in every state, averaging about 10cm. Hardy and drought-tolerant, but it almost never reproduces in captivity.
Orthoporus ornatus is a large spirostreptid millipede of the arid southwest, ranging from Arizona, New Mexico and Texas south to San Luis Potosi in Mexico. Individuals average about 10cm, with small ones around 7.6cm and exceptional ones reaching 23cm. The ground colour is dark brown, sometimes yellowish, and the species is said to look different in every state. It feeds on both living plants and dead organic matter, burrows to escape desert heat and dryness, and emerges after the summer monsoon rains. When disturbed it coils and releases an irritating fluid from glands along the sides of its segments. It can live more than ten years. The species became very popular in the pet trade and many were exported to Europe, but it hardly reproduces in captivity, so stock still depends on wild collection. Because it tolerates dry conditions well, the substrate does not need to be kept wet throughout; wetting part of it every few days is enough.
Source: Wikipedia (CC BY-SA 4.0)
The Desert Millipede lives Over 10 years.
The Desert Millipede grows to 10-15cm (up to about 23cm).
Origin
Southwestern North America (Arizona, New Mexico and Texas, south to San Luis Potosi, Mexico)
Lifespan
Over 10 years
Size
10-15cm (up to about 23cm)
Sources: Wikipedia: Orthoporus ornatus / Bugs in Cyberspace: Orthoporus ornatus Desert Millipedes / Bugs in Cyberspace: Orthoporus ornatus gold desert millipede / GBIF
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Orthoporus ornatus (Girard, 1853)
Synonyms: Julus ornatus Girard, 1853, Orthoporus arizonicus Loomis, 1953, Orthoporus crotonus Chamberlin, 1952, Orthoporus punctilliger Chamberlin, 1923
Authority databases: GBIF
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed)
Regulations may change. Always verify the latest information with the relevant authorities.
Find listings for this species
Leaf litter, decaying wood, vegetables and fruit
A desert species that tolerates dry conditions well. The substrate need not be kept wet throughout; wetting part of it every few days is enough. Suppliers publish no specific temperature or humidity figures.
Deep humus-rich substrate they can burrow into, plus cork bark hides. Give a generous floor area for such a large species.
Leaf litter and decaying wood as the staple, supplemented with vegetables and fruit, which also help hydrate them.
Placid and does not bite. It releases an irritating defensive fluid from lateral glands when disturbed, so wash your hands after handling.
It is reported not to reproduce in captivity, so traded animals are mostly wild-collected. Several individuals can be housed together.
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The average lifespan of Desert Millipede is Over 10 years. With proper care and nutrition, they can live a long and healthy life.
Desert Millipede typically reaches 10-15cm (up to about 23cm) as an adult. Size may vary depending on care conditions and individual genetics.
Desert Millipede feeds on: Leaf litter, decaying wood, vegetables and fruit. Aim for a balanced diet with appropriate feeding frequency.
The price of Desert Millipede varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026