Showing posts with label Araneae. Show all posts
Showing posts with label Araneae. Show all posts

Monday, 15 October 2018

Cyrtophora moluccensis (Tent Spider) - Sikkim Spider



Scientific classification

Kingdom:  Animalia
Phylum:     Arthropoda
Class:         Arachnida
Order:       Araneae
Suborder: Araneomorphae
Family:     Araneidae
Genus:      Cyrtophora
Species:    C. moluccensis

Binomial name: Cyrtophora moluccensis (Doleschall, 1857)

Other Names:  Tent Spider or Dome-Web Spider

Special feature:  The abdomen is high and the anterior end overhangs the cephalothorax. It can be distinguished from similar species by the two tubercles on its abdomen, its elaborate pattern, and, in females, the shape of the median septum of the epigyne. In males, the embolus of the pedipalp is enclosed within the conductor. Females and immature spiders are yellow to green in color.

Cyrtophora, the tent-web spiders, although technically orb-web spiders (family Araneidae), do not build orb webs. Their tent-like, highly complex non-sticky web is sometimes considered a precursor of the simplified orb web. These webs are aligned horizontally, with a network of supporting threads above them. These spiders often live in colonies. Females have a body length of mostly about 10 mm. (Source: Wikipedia)

Sunday, 7 December 2014

Giant wood spider (Nephila pilipes) - Sikkim Spider

Nephila pilipes (Giant wood spider)
Venue: Sirwani, Singtam,  South Sikkim
Date: November 29, 2014
Pic: Shital Pradhan




Scientific classification

Kingdom:       Animalia
Phylum:          Arthropoda
Class:             Arachnida
Order:            Araneae
Suborder:       Araneomorphae
Family:           Nephilidae
Genus:            Nephila
Species:           N. pilipes

Binomial name: Nephila pilipes (Fabricius, 1793)

Other Names: Giant Wood Spider, golden orb-weavers  or banana spiders.


Special feature:  Females are large and grow to a body size of 30–50 mm (overall size up to 20 cm), with males growing to 5–6 mm. It is one of the biggest spiders in the world.

The Nephila pilipes' web is vertical with a fine irregular mesh and not symmetrical, with the hub is usually nearer the top. Rather than egg sacks being hung in the web, a pit is dug which is then covered with plant debris or soil.

The first, second and fourth pairs of legs of juvenile females have dense hairy brushes, but as the spider matures these brushes disappear. (Source: Wikipedia)

Sunday, 1 June 2014

Nephila pilipes (giant golden orb weaver) - Sikkim Spider




Scientific classification

Kingdom:       Animalia
Phylum:          Arthropoda
Class:              Arachnida
Order:            Araneae
Family:           Nephilidae
Genus:            Nephila
Species:           N. pilipes

Binomial name:  Nephila pilipes (Fabricius, 1793)

Other Names: northern golden orb weaver or giant golden orb weaver

Special feature: Females are large and grow to a body size of 30–50 mm (overall size up to 20 cm), with males growing to 5–6 mm. It is one of the biggest spiders in the world.

The Nephila pilipes' web is vertical with a fine irregular mesh and not symmetrical, with the hub is usually nearer the top. Rather than egg sacks being hung in the web, a pit is dug which is then covered with plant debris or soil.

The first, second and fourth pairs of legs of juvenile females have dense hairy brushes, but as the spider matures these brushes disappear.

Source: Wikipedia