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Kingdom: Animalia 
Phylum: Arthropoda 
Class: Arachnida 
Order: Araneae 
Suborder: Araneomorphae 
Family: Desidae
Genus: Badumna 
Species: Badumna
Scientific name: Badumna longinqua
Synonyms: Badumna longinquus 
Common name: Australian Grey House Spider, Grey House Spider

Badumna longinqua is an Australian immigrant. of a body length: female: 15 mm male: 11 mm This species is commonly found in retreats of leaves and tangled webbing in green shrubs, tree trunks, logs,  It is also found in buildings and on car bodies and car mirrors, rock walls and buildings (in window frames, wall crevices, etc).It feeds on insects such as flies, moths, beetles.
The female spider usually never leaves her web unless forced to, but keeps on repairing it - old webs look untidy, grey and woolly from constant additions of silk. She hides in a retreat at the base of the web till an insect is caught in the web when she will run out and immobilises it. She will leave her nest at night and sit in her own web.
Its toxicity is uncertain; this species probably has the potential to cause mild illness but is rarely aggressive towards humans. 
Badumna longinqua is the favourite food of the whitetail spider.

For more details visit:

Grey House spider Badumna longinqua.JPG

Female in her daytime retreat.
Grey House spider Badumna longinqua-001.JPG

Australian Grey House Spider Badumna longinqua-28.JPG

The spider in a defensive posture
Australian Grey House Spider Badumna longinqua-29.jpg

Grey House Spider Badumna longinqua -001.JPG 

Male spider
Grey House Spider Badumna longinqua .JPG

Male Badumna longinqua Grey House spider-001.JPG

Male with swollen palps
Badumna spp male 7mm.JPG

Badumna spp male 7mm-005.JPG

Spiders underside
Australian Grey House Spider Badumna longinqua 2-3.jpg

Badumna longinqua photographed at night time sitting in its untidy web.
Badumna longinqua Australian grey house spider.JPG

Badumna longinqua Grey House spider.JPG

Badumna longinqua Australian grey house spider-1.JPG


Brown house spider old eggs sacs.  Exit holes are visible.

Brown house spider egg sacs.JPG


Thanks to Wikipedia for text and information: