Progradungula carraiensis
Encyclopedia
Progradungula carraiensis, or Carrai cave spider, is a cribellate spider found only in the moist forests and limestone caves of the Carrai Plateau
Carrai National Park
Carrai is a national park in New South Wales, Australia, 347 km north of Sydney....

 in northern New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

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These spiders are 8 to 12 mm long, with long and slender legs. They specialize in eating insects that feed on bat guano in the Carrai Plateau caves.

To catch prey, they build a special web with an upper network of threads attached to the rock walls. This supports a small (25 x 6 mm) platform made of cribellate silk. The spider sits head down on the platform and extends its front legs until the enlarged tarsal claws on their front legs are just above the ground. With these, they then scoop their prey into their web, which wraps around the insect.

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