The Sydney funnel-web spider calls the eastern parts of Australia home. While they might look medium or large in size, it’s their venom that’s worth noting. This spider’s poison can be really strong and harmful to people. Keep reading to uncover more interesting facts about them.
There are around a hundred eggs in a single egg sac, mostly round or oval in shape.
The small-sized spiderlings mostly hatch during spring and disperse in a short while.
Yes, Sydney Funnel-Web Spiders are venomous, and their venom can be harmful to humans. Of the 35 funnel-web species, the Sydney funnel-web is the most dangerous.
Yes, Sydney Funnel-Web Spiders can bite. Their bites can be painful and may require attention due to the venom they carry. They bite using venomous fangs when threatened. Their venom contains robustoxin, harmful to humans and monkeys but not other mammals. Males bite more often, and their venom is more toxic than females. Their bites are painful, leaving distinct fang marks. Sometimes, the spider stays attached after biting.
A total of 13 deaths have been recorded to date due to male Sidney funnel-web bites. In fact, one report highlighted the death of a child within 15 minutes of the attack.
Some of the common symptoms one may encounter include immense pain, nausea, increased sweating, immense coughing, and breathing troubles. An anti-venom was developed in Melbourne, in 1981, by Australian researcher Struan Sutherland, after which no fatalities from this spider’s bite have been recorded.
The Sydney Funnel-Web Spider plays a critical role in the ecology as a predator, helping to control populations of insects, lizards, and other small animals. Their nocturnal habits mean they are active hunters at night, often during warmer periods. Males are particularly mobile when seeking a mate.
Natural Predators: Despite their fearsome status, they have natural predators such as centipedes, birds, reptiles, and small mammals that help keep their population in check.
Prey-Predator Dynamics: The diet of these spiders consists of lizards, beetles, snails, cockroaches, and occasionally, other spiders, showcasing their position in the food chain. They help maintain the balance of their habitats by controlling the populations of these creatures.
Relationship with Humans: While they are venomous, the Sydney Funnel-Web Spider is generally not aggressive toward humans unless provoked or threatened. They may inadvertently enter human habitats, particularly males during mating season, which can lead to encounters with people. Despite their notoriety, these spiders are beneficial to have around gardens and backyards as they naturally reduce pest populations.
| Lifespan | Males: Till the age of 4
Females: Till the age of 20 |
| Distribution | Mostly found in the eastern part of Australia, though the species have also been traced in Queensland, Victoria, South Australia, and New South Wales. |
| Habitat | Males: Can be found in gardens, backyards, houses, garages or even inside swimming pools
Females: Mostly spend time in their burrows made in moist and cool places like holes within the rough-barked trees and rocks |
| Common Predators | Centipedes, birds, reptiles, small mammals |
| Diet | Lizards, beetles, snails, cockroaches and other spider species. |
In summary, the Sydney Funnel-Web Spider’s presence, while alarming to some, is a crucial element of Australia’s diverse ecology.
Frequently Asked Questions
Dr. James Watuwa on December 30, 2018.
Spider Team
© 2026 (Spider Identifications). All rights reserved. Reproduction in whole or in part without permission is prohibited.
Follow us on: 
