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A Guide to Common Singapore Spiders
by Joseph K H Koh
  Slender Sac Spider
Chiracanthium sp.
 
close-up of face showing eyes
Female
 Spiders of this genus are reported to be capable of inflicting a very painful bite.
Classification: Family Clubionidae, Sac Spiders
Habitat: Trees and shrubs in waste-land.
Female: 9 mm.
Male: 7 mm.
Bites of some Australian species may cause dizziness, sweating and nausea.

The Sac Spiders include spiders which build characteristic chambers in which to hide themselves for moulting or egg-laying.
close-up of nest made out of folded leaf
Nest of the
Slender Sac Spider
(Chiracanthium sp.)
The chamber is formed from a folded blade of leaf, sealed with a thick layer of silk. Occasionally, a larger chamber is made by fastening several leaves together.
  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