Comments

• These spiders were definitely not Steadata.
• I am interested in what Teff says. When I was living in Bellingen, I had three species of what appeared to be widow-type spiders living in my place, which was a converted stables. They all lived near water. Under the sink were a few redbacks, which I cleared out (I am confident with spiders and in Sydney often used to catch and remove funnelwebs that had wandered into the house in Lindfield, next to the national park). These spiders were then replaced by others that looked very similar but were very small, about 2mm, and mid-brown with transparent bodies.
  However at the top of the concrete shower stall, near the skylight, were twenty or thirty spiders that seemed to like light, steam, and damp. They were a definite black widow shape - like a redback, but no red mark - shiny black. However they were quite big-their abdomen was about 1 cm. I couldn't catch them, but I was bitten once by a stray. I don't remember clearly, but from memory, it caused a quite painful red bump about 2 cm across on my arm that took a week or so to go away. I would be interested to hear if the Museum knows what this spider is.
  Spiders are common in the area. I understand there is some debate about whether black house spiders cause necrotising bites. A friend of mine was bitten at the side of the eye by a black house spider. This caused a necrotised area about 4mm across that took about three weeks to develop and heal.