These are small millipedes. 
Julida are a group of millipedes. 
Julida are a group of millipedes. 
Male millipedes have special parts. In many kinds, their first pair of legs looks like hooks. They also have gonopods. These are special legs on the seventh part of their body. These legs help the males.
You can find these bugs in many lands. Most live in cool places. They live in North America and Panama. They live in Europe too. You can find them in Asia. They live north of the Himalayas. They also live in parts of Saudi Arabia. Some live in Southeast Asia.
There are about 750 species in this group. A species is a type of living thing. They belong to many families. Some families include Julidae and Parajulidae. Others include Blaniulidae and Nemasomatidae. This large group shows how many kinds of millipedes exist.
Julida is a large group of millipedes. 
Many Julida have special ways they work. In many species, the males are different. Their first pair of legs looks like hooks. They also have gonopods. These are special legs on the 7th body segment. These modified legs help the males in their lives. Each part of their body has a job.
Scientists have studied these millipedes for a long time. Many different people have named their groups. C. L. Koch named the Blaniuloidea in 1847. Leach named the Juloidea in 1814. Other names came much later. For example, Enghoff named the Trichonemasomatidae in 1991. These names help us organize the many types of Julida.
There are about 750 different species in this order. 
Think about the many bugs you see outside. 

Julida is a large order of millipedes. 
Many Julida possess unique physical traits. Their bodies are built for specific movements. Some species have eyes to help them sense light. Other species have no eyes at all. In many species, the males have very specialized anatomy. The first pair of legs on a mature male is often modified. These legs look like small, hook-like structures. Additionally, males have special legs called gonopods. These gonopods are located on the 7th body segment. These structures serve specific biological roles for the male.
Scientists organize Julida into many different groups. These groups are called superfamilies and families. There are many ways to classify these millipedes. For example, the superfamily Juloidea includes the family Julidae. Another group is the Blaniuloidea, which contains the Blaniulidae family. There are also many members in the Nemasomatoidea superfamily. This superfamily includes families like Nemasomatidae and Pseudonemasomatidae. Each group is defined by specific scientific characteristics.
Taxonomy, or the naming of life, has evolved over a long time. Many researchers have contributed to our knowledge of Julida. In 1814, Leach named the Juloidea and Julidae groups. C. L. Koch provided names in 1847 for the Blaniuloidea. Later, researchers like Verhoeff and Loomis added more names. In 1926, Attems named the Rhopaloiulidae. More recently, Enghoff named several groups in 1991. These names help scientists track the history of discovery.
There is a vast amount of variety within this order. Scientists estimate there are approximately 750 different species of Julida. 
Their distribution covers many continents and regions. You can find Julida in North America and Panama. They are also common throughout Europe. In Asia, they live in areas north of the Himalayas. Some species live in the Asir region of Saudi Arabia. They are also found in Southeast Asia. This wide range shows they can adapt to different homes. 
Julida belongs to a larger biological system. They are part of the millipede orders. The study of these creatures connects to many scientific fields. Understanding their body parts helps biologists study evolution. Looking at their different families helps experts understand classification. 
🖼️ Images & Media (1)
More to explore
✨ What else?
Related topics you might enjoy
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.