Female Opadometa fastigata of Bukit Gemok

Photo above :  Female Opadometa fastigata of Bukit Gemok

Classification: Family Tetragnathidae, Big-Jawed Spiders.
Habitat: Wooded areas.
Female: 8-9 mm.
Male: 3.5 mm.
Distribution: Singapore, Indonesia, Thailand, the Philippines, Myanmar, Sri Lanka, India.

Opadometa fastigata (Simon, 1877)
Family: Tetragnathidae
Size: 7-9 mm.
Distribution: India, Philippines.
Habitat: Low shrubs in shaded and moist environments.

These are orb web builders in shaded vegetation. The cephalothorax is flat which is pale yellow, darkens medially and towards the margin. Pedicel joins the abdomen some distance along the ventral side. Front of the abdomen of the female tapers strongly and overhangs most of the carapace. The abdomen is tubular, tapers to the front and protrudes to the rear over the spinnerets. There are silver white patches all over the abdomen. The legs are long and thin with dark brown annulations. Femora IV with uniform rakes of long curved trichobothria. There is also a substantial brush of hairs all round or almost all along tibia IV.

Opadometa fastigata

This is a young Opadometa fastigata spider about 4mm in body length found just half a meter away from the below adult spider.

More about this young Opadometa fastigata spider

Opadometa fastigata (Simon) 1877

Pear-Shaped Leucauge
Opadometa fastigata (Simon) 1877

Opadometa fastigata (Simon) 1877

The eyes of a female Opadometa fastigata spider in Sabah, Malaysia
Spiders have special glands called "spinneret" located in their abdomen which helps them to produce the silk for web.

Many species of spider have different glands to produce silk for different jobs, such as housing and web construction, defense, capturing and detaining prey, or mobility. Thus, different specialized silks have evolved with material properties optimized for their intended use. For example, Argiope argentata has five different types of silk, each for a different purpose.


The last pair of legs are well armed with strong spines (the hair brushes orgaiters) on the tibial segment of legs
A close up look at the foot of a Opadometa fastigata spider.

Opadometa fastigata species typically build a web with a central component of heavy zigzag silk but there is not a string of insect debris stretched across the web.

More about Orb Web ( Orb-weaving ) Spiders

Why a Garden spider does not get stuck in its own web Microscopy UK. Ben Prins (The Netherlands)
A Guide to Common Singapore Spiders A lot of pictures and information. Joseph K. H. Koh (Singapore)
Arachnids on Benzedrine Web of Spider on Benzedrine (Amphetamines).
Argiope bruennichi Pascal Dubois (France)
Curious about spiders? A number of pictures of spiders of medical importance and also some info on the Woodlouse hunter (Dysdera crocata), wolfspiders and garden spiders. University of Nebraska, Lancaster County (USA)
Garden Spider European Garden spider, Araneus diadematus. Elaine Kalantarian (USA)
Garden spider jaws Picture of the jaws. Wim van Egmond. Micscape Article (The Netherlands)
Garden Spiders of the Coastal Sage Scrub Short article. Lenny Vincent. Fullerton College (USA)
Glance into "The world of spiders and scorpions" Several images of spiders. www.thais.com (Italy)
Het spinneweb Short text. Natuurvereniging Gorredijk (in Dutch) (The Netherlands)
How do Jumping spiders catch up on their prey?: A model for pursuit behaviour. ( Lyn. M. Forster & Malcolm R. Forster (USA)
Les Araignées de France Very nice site with much info. P. Dubois (in French) (France)
Mangrove St. Andrew's Cross Spider Argiope mangal. These spiders get their name for the way their hold their eight legs in pairs to form an X shape. Ria Tan (Singapore)
Miss Muffet Needn't Have Been So Frightened About the Black and yellow Argiope. Roy Lukes. Nature-Wise (USA)
Order: Araneae (spiders) Taxonomic Classification, Basic spider anatomy, Spider silk, Info and pictures of: Argiope aurantia - Black and Yellow Argiope Spider, Gasteracantha cancriformis - Spiny Orb Weaver Spider, Neoscona domiciliorum - Spotted Orbweaver, Kukulcania hibernalis - Southern House Spider, Hogna georgicola, Hogna lenta - Florida Brown and Yellow Wolf Spider, Peucetia viridans - Green Lynx Spider, Dolomedes albineus - Whitebanded Fishing Spider, Leucauge venusta - Orchard Orb Weaver Spider, Nephila clavipes - Golden Silk Spider. FloridaNature.org (USA)
San Diego County Bug Pictures Silver Argiope, Bola spider, Cyclosa sp., by Ron Lyons (USA)
Spiders House spiders, Purseweb spider, Jumping spider, Money spider, Water spider, Garden spider, Raft spider, wolf spider. Stuart M Bennett (UK)
Spiders Nursery web spiders, Walnut orb-weaver, Garden or Cross spider, Argiope bruennichi, Common crab spider, Spotted wolf spider, Araneus quadratus, Tetragnatha extensa. UK Safari (UK)
Spiders and other non-insects With pictures and info of the Jewel spider (Araneus gemmoides), European house spider (Tegenaria domestica), White goldenrod spider (Misumena vatia), Western black widow (Latrodectus hesperus), Daddy-long-legs (Harvestmen, Phalangium opilio). The Provincial Museum of Alberta (Canada)
Spiders of Kaweah Oaks Preserve A lot of pictures. Marjorie Moody. Sierra Los Turales Land Trust (USA)
Spiders of Sirena Spiders of Sirena,Parque Nacional Corcovado, Costa Rica. Graduate Field Course in Rainforest Research. L.E. Gilbert. The University of Texas at Austin (USA)
Spinnen rund um Freiburg und im Schwarzwald Some pictures made by Sabine Jelinek (Germany)



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