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Uloborus barbipes L. Koch, 1872 Tufted Uloborus

Uloborus barbipes is a medium sized Uloborid. Females of Uloborus barbipes can be up to 6mm in body length, males up to 4mm. They are officially known only from Queensland coastal areas and nearby drainage basins, but are likely to be found elsewhere. They are found in most environments including around houses and other built structures. The name denotes their most obvious feature, the bearded front legs. They are off-white to grey or buff-cream coloured spiders, with some darker brown markings, having a relatively small body compared to their front legs which are about the same size as the body if not longer. Males and females share the same shape and patterns, the males a little smaller. Juveniles are much paler than adults. These spiders construct a small, messy, horizontal or slightly inclined orb web in foliage near the ground or in crevices of natural and built environments. They resemble a fragment of twig or other debris, and stay outstretched, quite still, until disturbed when they may fall like a twig and lie still, outstretched, or quickly run to another place and stretch out and stop again. Normally in the wild they are stretched out suspended by a few strands of their web. Very common in gardens and suburban bushland. The female makes a somewhat angular, oval-shaped egg sac of greyish white silk about 7mm by 5mm containing 40-50 non-glutinous, pinkish-coloured glubular eggs each about half a millimetre in diameter. They feed on small, soft-bodied arthropods. This spider has retained the name given to it by Koch in 1872.

Female from side

Collected on the creek near the SOWN shed, Paten Park in mid August 2009. Body lenth about 4mm with the front legs as long again, if not longer. Like Miagrammopes spp. it stiffens lengthways with tips of the front legs curved, resembling a twig or leaf or seed fragment.

Philoponella sp.
Photo: Robert Whyte

Female from above


Philoponella sp.
Photo: Robert Whyte

Female, side on, suspended upside down


Uloborus barbipes
Photo: Robert Whyte

Female from above, suspended, facing down


Uloborus barbipes
Photo: Robert Whyte

Leg tufts from above


Uloborus barbipes
Photo: Robert Whyte

Closeup of eye region


Uloborus barbipes
Photo: Robert Whyte

Female from above, side on


Uloborus barbipes
Photo: Robert Whyte

Leg tufts, underneath


Uloborus barbipes
Photo: Robert Whyte

Female showing underneath


Uloborus barbipes
Photo: Robert Whyte

Whitish female, orange legs front on


Uloborus barbipes
Photo: Robert Whyte

Whitish female, orange legs, side On


Uloborus barbipes
Photo: Robert Whyte

Pale female, dark legs, side on


Uloborus barbipes
Photo: Robert Whyte

Pale female, dark legs, side on showing underneath


Uloborus barbipes
Photo: Robert Whyte

Two females, orange legs and dark legs


Uloborus barbipes
Photo: Robert Whyte

 

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