Oecobius navus is a small cosmopolitan cribellate spider species found across the world.

The carapace is almost circular, pale brown, with a dark patch in the centre which sometimes extends to the ocular region, and a thin black marginal line.

The abdomen is coloured a yellowish brown, with black spots over smaller white flecking.

It builds flat webs with lateral openings with a diameter of about 3 cm under rocks, on ceilings and along the corners of walls with protruding signaling threads.

[3] As with other Oecobiids, O. navus have an unusual hunting method; they run around their prey, using the anal tubule and spinnerets to coat it in ribbons of sticky silk.