All spiders do not have venom.
August 30, 2011 11:12 pm
Thank you for your interesting web site – I have been visiting it for many years now.
Just one query pls. Your regularly indicate that “All Spiders have poison”.
I was taught at varsity that the family Uloboridae does not have venom glands and the members are therefore not venomous. Was I taught wrong?
Deon, Pretoria, South Africa
Thanks so much for bringing this to our attention. As we have stated in numerous locations on our website, we do not have science backgrounds, but rather, we are visual artists who have an interest in the lower beasts. We decided to research this a bit, and have now learned that there is at least one family of spiders, Uloboridae as you have pointed out, that does not have venom. According to BugGuide, these Cribellate Orbweavers or Hackle-band Orbweavers are “unique among spiders in our area in having no venom at all.” The Spiders of Australia website has a nice page on them that also points out “Uloborid spiders are unusual in having no poison glands. They rely completely on wrapping their prey in silk.” Alas, we doubt that we will have the time to make this correction in every location on our website, but we will be sure to not make this error again.