I mean, sure that they are spiders whose bite is medically significant.@ Lorum: Am I sure of what?
The link you provide has a copyright from 1999, the article I posted is from 2006. The web site is not actualized (as you can read in the main page). Also, there is not a single reference to literature used to write the article about the yellow sac spider. It even says they are members of the family Clubionidae.So my friend converted that .pdf to a .txt, and it is a very interesting read.
However: I was reading this before I posted my first answer...
What's the difference between clinically and medically significant? And different people will have different reactions.
Nope.. i guess its just a little shadow im seeing in the photo. It doesnt look like the 'yellow sacs' we find over here (well..it does but it doesnt :?) ...and you're in Israel correct?Thanks everyone, you were all very helpful.
Looking at the pictures from Chiericanthium sp. it certainly looks like it.
buthus: I've not seen any boxing gloves. Do you think it's a male, though?
And do you have any tips about the care of this spider?