Australia has poisonous spiders and there are a lot of them including Sydney Funnel Web Spider, Redback Spider, and the Mouse Spider etc. Listed below is a list of some poisonous Spiders in Australia.
- Sydney Funnel Web Spider: These spiders are aggressive by nature and can be very deadly. They are ground dweller and are commonly found in moist soil areas along much of the eastern coastal area of New South Wales and Victoria. They possess very strong venom called atraxotoxin which is one of the world’s dangerous toxins. As mentioned above, the male Sydney funnel web spider is highly aggressive when disturbed or cornered. They are able to inflict multiple bites with its flick-knife hardened fangs. They are really dangerous as during heavy rain or earthquakes they can be commonly found wandering around the garden or in the home at such times.
- Red-Back Spiders: The red-back spider can inflict a painful bite which can be fatal especially to the young ones and elderly. Effective anti-venom was developed in 1956 and about 250 people receive the anti venom each year. Their venom is so dangerous that only a small amount of venom can cause serious illness, as the poison attacks the nervous system. Systemic envenomisation usually results in headache, vomiting, nausea, pyrexia, abdominal pain, paralysis and hypertension. The redback spiders prefer dry habitats and is often found in letter boxes, underside seats, in rubbish, empty cans etc.
- Mouse Spiders: The mouse spider is well known to cause severe illness especially to the young children. Although they are not usually aggressive, the male mouse spider will bite if provoked and is considered to be dangerous to humans. The mouse spider has large hard fangs which can cause a deep painful bite. First aid and medical attention should be sought as soon as possible.
- Black House Spiders: The bite of the black house spider is poisonous but not lethal. Some people severe pain around the bite site, heavy sweating, muscular pain, vomiting, headache and giddiness. An adult black house spider spins a lacy, messy web and are up to 15 mm in body length and of a dark brown to black velvet texture appearance. The Black House Spider prefers dry habitat areas and secluded locations and is commonly found in window farming, under eaves, gutters, in brickwork, sheds, and toilets and sometimes among rocks and bark. Electric lights attract their main food sources which are moths, flies, mosquitoes and other insects.
The above four spiders are highly venomous and should be taken care of as soon as possible if you have a young child or an elderly person in your home.