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Gardeners and people digging in soil may encounter Funnel-webs in burrows at any time of the year.įunnel-web burrows are distinguished from other holes in the ground by the presence of a series of irregular silk 'trip-lines' radiating out from the entrance. Funnel-webs are very vulnerable to drying out, so high humidity is more favourable to activity outside the burrow than dry conditions.
Rain may flood burrows and the temporary retreats of male Funnel-webs, causing an increase in their activity. These trip-lines alert the spider to possible prey, mates or danger. The most characteristic sign of a Funnel-web's burrow is the irregular silk trip-lines that radiate out from the burrow entrance of most species. In gardens, they prefer rockeries and dense shrubberies, and are rarely found in more open situations like lawns. anzes group, a single, far northern outlier species in rainforests north of Cairns, north Queensland.įunnel-webs burrow in moist, cool, sheltered habitats - under rocks, in and under rotting logs, crevices, rot and borer holes in rough-barked trees.'lamington' group, several species confined to discrete rainforest areas in New South Wales and Queensland.a single species isolated in the wet forests of the Illawarra region of New South Wales.adelaidensis group, isolated in the dry forests of the Gulf Ranges of South Australia the only trap-door building funnel-web spider.infensa group, found north of the Hunter River region into south-east Queensland.formidabilis, the largest funnel-web spider (body length up to 5 cm) cerberea group, found entirely south of the Hunter River into Tasmania, except for a single species, the Northern Tree-dwelling Funnel-web Spider, H.Within Hadronyche several groups of related species are currently recognised. While Sydney Funnel-webs were never restricted to the leafy north shore region as some would have it, Sydney real estate does give a rough guide to funnel-web density - the more expensive the area the greater the funnel-web population (the dry, sandy eastern suburbs excepted). Two funnel-web species are common in the Sydney region - the Sydney Funnel-web Spider ( Atrax robustus) and the Southern Tree-dwelling Funnel-web Spider ( Hadronyche cerberea). The dry, flatter areas of western Sydney and the Cumberland Plain have fewer funnel-webs, their numbers picking up again in the foothills of the Blue Mountains. In Sydney suburbia, funnel-web spiders mostly live in the moist upland forest areas of the Hornsby Plateau to the north and the Woronora Plateau to the south, where sheltered burrow habitats abound in both bushland and gardens.
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