Sac spiders

Sac spiders are spiders that make a kind of silken sac in which they lay their eggs.
The following families are included in the common named group of "Sac spiders":
Anyphaenidae, Tengellidae, Zorocratidae, Miturgidae, Liocranidae, and on this page the Clubionidae, Corinnidae and Gnaphosidae.

Family Corinnidae

Supunna picta

The wasp-mimicking spider or Supunna picta is one of the fastest spiders in Australia. While running, it waves its two forelegs above its body, mimicking the two antennas of a wasp.
The front two legs have a brown tinge. Male and females are identical and their length varies between 5 and 7 mm.
This species is closely related to much larger Sunpunna albopunctum (7 -12 mm) but this spider has two rows of white dashed spots on its abdomen.
In autumn and winter the females construct a flat very white disc schaped egg-sac of 5-6 mm. The spider feeds on ground dwelling insects and spiders.

This genus is in appearance closely related to the family Clubionidae.
Although this family consists of almost 2000 valid species, the family becomes smaller and smaller for the Australian continent.

Recently several flat spiders (Hemicloea) were moved to the family Trochanteriidae.

Gnaphosid spiders have large cylindrical spinners. The abdomen has no clear markings and their colouring ranges between grayish brown and black. They are nocturnal hunters and spent the day in a silken retreat.

The females make their thick walled egg sacs in the summer and guard it until the youngsters are born.