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Gasteracantha cancriformis

Gasteracantha cancriformis is a short-lived spider species with an amusing appearance. Female spiders die right after producing eggs and males die around six days after copulation.

Gasteracantha Cancriformis

Scientific Classification

Physical Description and Identification

Adults

Size: Females are 0.20–0.35 in (0.5-0.88 cm) and males are 0.39–0.51 in (0.99-1.2 cm)

Color: The underside, legs, and carapace are white-spotted black, the abdomen can be either white or yellow, both being black-spotted. If the upper side is white, then the spines will be either black or red, but yellow upper side will have only black spines.

Other Characteristic Features: The number of abdominal spine is always six.

Gasteracantha Cancriformis Size

Eggs

100-260 eggs are produced in a single egg sac, safely kept under leaves.

Gasteracantha Cancriformis Egg Sac

Spiderlings

Spiderlings hatch without any parental supervision as both of them die by this time. The spiderlings usually emerge during the winter and disperse on their own in the next spring as they gain sexual maturity.

The Web

Female spiders make web every night using foundation silk and tufted silk. Male spiders hang from a single thread near the web in order to allure female spiders. The female, after making the web, sits on it, facing downwards and waits for her prey.

Gasteracantha Cancriformis Web

Is Gasteracantha cancriformis Venomous

There is no evidence showing that the spider is venomous to humans.

Gasteracantha Cancriformis Spider

Quick Facts

Other Names Spinybacked orb weaver, star spider
Distribution United States, Cuba, Jamaica
Habitat Shrubby gardens, woodlands edges, trees
Diet Moths, whiteflies, beetles, and drosophilids
Web Type Orb web
Predator Flies and wasps for spider eggs
Lifespan Maximum 1 year
IUCN Conservation Status Not listed
Star Spider

Did You Know

  • The genus name of the spider has come from Greek words “gaster” meaning belly and “acanthi” meaning thorn. The scientific name is an amalgamation of two Latin words “cancer” meaning crab and “forma” meaning shape.
Spinybacked Orb Weaver

Image Credits: Live.staticflickr.com, Bio.pisceswebdesign.com, 4.bp.blogspot.com, Bio.pisceswebdesign.com, 1.bp.blogspot.com,
I.pinimg.com

Gasteracantha cancriformis is a short-lived spider species with an amusing appearance. Female spiders die right after producing eggs and males die around six days after copulation.

Gasteracantha Cancriformis

Physical Description and Identification

Adults

Size: Females are 0.20–0.35 in (0.5-0.88 cm) and males are 0.39–0.51 in (0.99-1.2 cm)

Color: The underside, legs, and carapace are white-spotted black, the abdomen can be either white or yellow, both being black-spotted. If the upper side is white, then the spines will be either black or red, but yellow upper side will have only black spines.

Other Characteristic Features: The number of abdominal spine is always six.

Gasteracantha Cancriformis Size

Eggs

100-260 eggs are produced in a single egg sac, safely kept under leaves.

Gasteracantha Cancriformis Egg Sac

Spiderlings

Spiderlings hatch without any parental supervision as both of them die by this time. The spiderlings usually emerge during the winter and disperse on their own in the next spring as they gain sexual maturity.

The Web

Female spiders make web every night using foundation silk and tufted silk. Male spiders hang from a single thread near the web in order to allure female spiders. The female, after making the web, sits on it, facing downwards and waits for her prey.

Gasteracantha Cancriformis Web

Is Gasteracantha cancriformis Venomous

There is no evidence showing that the spider is venomous to humans.

Gasteracantha Cancriformis Spider

Quick Facts

Other Names Spinybacked orb weaver, star spider
Distribution United States, Cuba, Jamaica
Habitat Shrubby gardens, woodlands edges, trees
Diet Moths, whiteflies, beetles, and drosophilids
Web Type Orb web
Predator Flies and wasps for spider eggs
Lifespan Maximum 1 year
IUCN Conservation Status Not listed
Star Spider

Did You Know

  • The genus name of the spider has come from Greek words “gaster” meaning belly and “acanthi” meaning thorn. The scientific name is an amalgamation of two Latin words “cancer” meaning crab and “forma” meaning shape.
Spinybacked Orb Weaver

Image Credits: Live.staticflickr.com, Bio.pisceswebdesign.com, 4.bp.blogspot.com, Bio.pisceswebdesign.com, 1.bp.blogspot.com,
I.pinimg.com

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