It occurs naturally in the Mediterranean region, but was introduced to Belgium. It is also sometimes found in German greenhouses. Typically, it shows a large white or yellowish band surrounding the head region and a smaller one at the anterior end of abdomen. Males are black with a white line around their head and the top of their abdomen, which is brown.
The species name is derived from Latin jucundus "pleasant".
The mediterranean white-banded spider is an arachnid adorned with a vibrant, distinctive pattern that acts as a visual cue in its complex courtship rituals. Its acute vision, among the best in invertebrates, enables precision in its hunting technique, characterized by impressive leaping abilities to ambush prey. These pounces are powered by a unique internal hydraulic system, showcasing a remarkable evolutionary adaptation.