BLACK HOUSE SPIDER

Black house spiders can be found throughout Australia. They are usually found on rough-barked trees and when they come inside buildings they are often found in corners, around windows and doorways and any other light source that can attract prey.

ALTERNATIVE NAMES

Window Spiders
Grey House Spider

APPEARANCE

1-1.5cm in body length and a 3cm leg span
The female is larger than the male
The dorsal and legs are dark brown to black in colour
The abdomen is charcoal grey with white markings
Their webbings are often mistaken for funnel web spiders

LIFECYLE

The female constructs several white silk eggs sacs secured within the web retreat.
The female stays with the eggs until they hatch. The spiderlings then disperse
The spiders mature during the summertime and live for about two years

HABITS

The web of the black house spider is an untidy, lacy sheet with a funnel like entrance
Their webs can be found on tree trunks, logs, rock walls, buildings, window frames and crevices.
In built-up areas it is common to find Black House Spider building webs in dark corners of windows, veranda’s, sheds or fences.
The female black house spider never leaves her web unless she is forced to. She constantly repairs and adds to her web.
Older webs can look grey and woolly from the constant additions of silk

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THE BITE

Bites often occur when the spider feels threatened.
Black house spiders venom is poisonous but no fatal
The bite causes excruciating pain and swelling
Nausea, vomiting, sweating & dizziness

PREDATORS

White-tailed Spider
Parasitic wasp
Flies

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