Myriapoda Ommatoiulus rutilans is a species of millipede known locally in the Comunidad Valenciana as a type of "milpiés" or "cienpiés," though technically these terms can refer to different groups of myriapods.

This species, which belongs to the family Julidae, is recognized for its elongated, cylindrical body that can measure up to 5 centimeters in length. The body is composed of numerous segments, each bearing two pairs of legs, showcasing the characteristic multi-legged appearance of millipedes.

• Coloration: Ommatoiulus rutilans typically exhibits a dorsal coloration of dark brown or reddish-brown with a glossy texture that can make the surface appear metallic in good lighting.
• Habitat: This millipede is commonly found in moist environments, such as under stones, logs, and leaf litter in forests and gardens. Their presence is often an indicator of a healthy and well-balanced ecosystem.
• Diet: They are detritivores, primarily feeding on decaying organic matter, contributing significantly to soil aeration and nutrient cycling.
• Behavior: Ommatoiulus rutilans is generally a slow-moving creature and tends to coil into a spiral as a defensive mechanism against predators.

While not harmful to humans, the secretion they produce can cause mild irritation if handled improperly. Observing them in their natural habitat can be an enriching experience, revealing the intricate roles these creatures play in our ecosystem.