Black House Spider

The Black House Spider (Badumna insignis) is a common venomous arachnid. It is also known as the Common Black Spider.

The Black House Spider has a dark-brown or black carapace (shell) and a greyish abdomen. It is covered with fine, velvety hair. It has two front pedipalps near its mouth. 

Black House Spider

It grows to about 2 centimetres (less than 1 inch) in length. Its legs can be up to 3 centimetres (1 inch) long.

It is native to Australia. It lives in a messy, funnel-shaped web. The female never leaves the web. It is usually found on the rough bark of trees. Inside houses, it is found in dark corners, around windows and doorways. 

It is venomous, but is not considered dangerous to humans. However, its bite is extremely painful and can cause vomiting. 

The Black House Spider is nocturnal, active mainly at night. At night, it repairs its web and catches its food. 

The female makes several white silk egg sacs, which she attaches to the web. She stays near the egg sacs until they hatch. They young are called spiderlings. 

Black House Spider
Black House Spider
Black House Spider

[Location of photographs:Adelaide, Australia]

Photographer: Martina Nicolls


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