The Amaurobiidae are three-clawed spiders found in most parts of the world and difficult to distinguish from related spiders in other families, especially Agelenidae, Desidae and Amphinectidae. Their intra- and interfamilial relationships are contentious. In Australia many are small to medium-sized spiders with generous sheet webs across the floor of rainforests. They generally have eight similar eyes in two conservatively curved rows. They often have a calamistrum or hook on metatarsus IV associated with a cribellum for producing hackled silk. They are mostly nondescript spiders, pale to dark, found in crevices and hollows where they build nests often with several retreats. The Australian fauna has been divided into 4 groups. Dardurus species build a widely U-shaped short tube with soil encrusting the web and strong, paired spines on tibiae and metatarsi I, II. The second group around Oztira have strongly procurved eye rows. The third group is based on the genus Tasmarubrius and the fourth group is based upon Midgee whose spinneret configuration resembles Hahniidae.
Midgee binnaburra Davies 1995
