On the edge of the hole stands a kerb, formed of straw, bits and scraps of all sorts and even small pebbles, the size of a hazel-nut.

The whole is kept in place and cemented with silk.

Often, the Spider confines herself to drawing together the dry blades of the nearest grass, which she ties down with the straps from her spinnerets, without removing the blades from the stems; often, also, she rejects this scaffolding in favour of a masonry constructed of small stones.

The nature of the kerb is decided by the nature of the materials within the Lycosa's reach, in the close neighbourhood of the building-yard.

There is no selection: everything meets with approval, provided that it be near at hand.
The direction is perpendicular, in so far as obstacles, frequent in a soil of this kind, permit.