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Cyclosa insulana or commonly known as humpback Cyclosa spider, belongs to the genus Cyclosa, in the family Araneidae. This spider normally mounts its web containing thick silk bands with debris. Its colour can be variable and its cylindrical abdomen has a tail-like extension, flanked by two lateral humps. Spiders of this genus can be easily recognised by the characteristic U-shaped demarcation between the raised “head” (the cephalic part of the cephalothorax) and the flat thoracic region. These spiders decorate their vertical orb-webs with a band of rubbish made of remains of insects bound in silk through the centre. The spider sits in the hub and pretends to be a part of the debris. The vertical orb-web is decorated by a vertical band of debris through the centre. The size of the female is larger than the male. It is widespread in Malaysia, Brunei, Thailand, Singapore, Myanmar, Indonesia, Vietnam, India, Papua New Guinea, Sri Lanka, China, Nepal, Japan and Northern Australia.
Profile | |
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Nik Ahmad Irwan Izzauddin Bin Nik Him (Dr.)
Universiti Sains Malaysia (USM)
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Spiders,
Biodiversity
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Norma Binti Che Yusoff (Prof. Dr.)
University of Malaya (UM)
|
Spiders (Ecology),
Protected Areas, Marine & Coastal, Digital Sequence Information (DSI) & Climate Change
|
Rosli Hashim (Prof. Dr.)
University of Malaya (UM)
|
Birds (Ecology), Mammals (Ecology), Spiders, Insects,
Biodiversity & Protected Areas
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Tan Li Peng (Dr.)
Universiti Malaysia Kelantan (UMK)
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Arachnids, Insects,
Agriculture, Biodiversity & Forest
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Acknowledgements :- Ms. Aida Salihah Binti Abu Bakar, Ms. Ilmie Syafiqah Binti Mohd Termizi, Ms. Norazah Binti Norddin, Mrs. Nurfarhana Hizan Binti Hijas & Mr. Yasser Mohamed Arifin
Photo credit :- USM
Species Citation :- Cyclosa insulana. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/60826. [Retrieved 25 April 2024].
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