Class Symphyla is a group of small, soil-dwelling arthropods that are often referred to as "pseudocentipedes" due to their resemblance to centipedes, but they are not true centipedes. These animals have segmented cylindrical bodies, which are covered with fine hairs that help them move through soil. Common synonyms for this group include "garden centipedes," "house centipedes," "soil centipedes," and "scoliopendrids." These creatures are not harmful to humans and are beneficial for soil fertility. They feed on decaying plant matter and help to redistribute nutrients in the soil, making them an important contributor to soil health.