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A Guide to Common Singapore Spiders
by Joseph K H Koh
  Scorpion Spider
Arachnura sp.
 
close-up of female imitating a dry twig
Female
The abdomen is armed anteriorly with two horns and posteriorly with a peculiar star-shaped tip. Tries to enhance its imitation of a dry twig by folding its legs and drawing them close to the body.
Classification: Family Araneidae, Orb-Web Spiders.
Habitat: Inside primary forests.
Female: 12-15 mm.
When alarmed, the posterior end of the abdomen is curled upwards, scorpion-style.

The web is a widely-spaced orb with a missing sector, usually slung in a horizontal or inclined plane.
  From "A Guide to Common Singapore Spiders" by Joseph K. H. Koh
BP Guide to Nature Series published by the Singapore Science Centre and sponsored by British Petroleum
© 2000 Joseph K H Koh