[3] The spider then goes on to regurgitate digestive fluid into the shroud, then consuming the pre-digested liquid.

Debris often litters the communal web, making observation of the spider difficult.

Found natively in New South Wales, P. congregabilis is (as of 18 January 2021[update]) one of 73 spider species - and specifically 50 Australians - established in New Zealand.

The female produces an egg sac around 9 millimetres (3⁄8 in) long and fairly flat and elongate in shape.

The egg sacs are suspended in the communal web, tapering at the ends and having several lateral points.