Eupalpigradi

Eupalpigradi is a subclass of arachnids that encompasses a single order, Palpigradi. These tiny arachnids are also known as microwhip scorpions due to their long, whip-like tail, called a flagellum, which is often longer than their body. Eupalpigradi are characterized by their unsegmented body, with a distinct prosoma (cephalothorax) and opisthosoma (abdomen). They possess pedipalps that are chelate, meaning they are pincer-like, and are used for sensing and capturing prey. Their legs are slender and adapted for rapid movement.

These creatures are typically found in moist, dark environments such as caves, under rocks, and in leaf litter. They are predators, feeding on small invertebrates like mites and springtails. Eupalpigradi are believed to use their flagellum for defense or to sense their surroundings, although its exact function is still debated among scientists. Despite their fascinating morphology and unique adaptations, eupalpigrads are rarely encountered by humans due to their small size and secretive habits. Their study is primarily within the field of arachnology, contributing to our understanding of arthropod diversity and evolution.