Which spider is known for the distinctive fiddle shape on its cephalothorax and often hides in closets?

The brown recluse spider is identified by its distinctive fiddle-shaped marking located on its cephalothorax, which is the front part of its body. This specific shape is a key characteristic that helps differentiate it from other spiders. In addition to its physical traits, the brown recluse is known for its behavior of seeking out dark, undisturbed areas where it can hide, such as in closets and corners of rooms. This habit contributes to its reputation for being elusive and difficult to spot, often leading to surprise encounters with humans. The spider's venom can also cause significant skin lesions, making it important for individuals to recognize it and exercise caution. Other spider types do not possess this specific fiddle shape or display the same hiding behaviors associated with the brown recluse.