The Wall Spider, Baseboard Spider, or Stucco Spider (Oecobius navus) is a species of spider that has an international distribution. Although it is sometimes known as O. annulipes, there is also a species of that name that naturally occurs in Algeria.
The Wall Spider is only about 0.11 inches long and is light gray with dark colored legs with ring-like segments. Its web is built flat with tiny lateral openings. The web is found under rocks, on ceilings and along the corners of walls with protruding signaling threads.