2. Sydney funnel web spider (Atrax robustus)
LD50 value: 0.16
This spider is native to Eastern Australia, and most common around Sydney area. Interestingly, males are more dangerous than females, which is very unusual in the world of spiders. Although often a very small portion of venom is injected in recorded bites in humans, it is known that when a larger dose is injected, only 15 minutes is enough to kill a human. It is also interesting that their venom is specifically dangerous to primates.
