The body of this genus of spider looks quite typical for arachnids when viewing it overhead. Their most remarkable feature, however, is best seen in its profile. Additional concealment comes from a flattened body. The abdomen is flat, as if pressed down on with a spatula. This lean profile allows them to squeeze into small crevices and remain hidden from danger. This physical feature has given them the nickname "flatties".
They are nocturnal and hide during the day. At night they emerge and quietly rest, often overlooked in the darkness. For this reason, sightings are rare despite their year-round presence.