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Eresus walckenaeri

Eresus walckenaeri is a spider endemic to the eastern Mediterranean. Due to the male’s appearance, it is often called a ‘ladybird spider’ – a name shared with several other species in its genus.

Scientific Classification

Eresus walckenaeri

Physical Description and Identification

Adults

Size: Male: 0.6-0.9 cm, Female: 4 cm

Color: Male: The males have an appearance similar to that of a ladybug, with a red body and four black spots on the abdomen. Female: They are velvet black or purple, with a red band seen on the abdomens of particular specimens.

Other Characteristic Features: Their legs and abdomen have bristles all over them.

Eggs

Females lay around 100 eggs in a sac made of webbing.

Spiderlings

Juveniles disperse via ballooning much more than other members of their genus.

The Web

These spiders produce strikingly pink-colored webs.

Is the Broad-faced Sac Spider Venomous

Little is known about this spider’s venom, with bites rarely occurring. Even if they do, their venom is not fatal to humans.

Quick Facts

Lifespan 4-5 years
Distribution Eastern Mediterranean, including the southern Balkans, Turkey, southern Italy, and some islands in the Aegean sea
Habitat Dry, sandy soil
Diet Insects

Did You Know

  • French entomologist Gaspard Auguste Brullé first described this spider in 1832.

Image Source: 

Eresus walckenaeri is a spider endemic to the eastern Mediterranean. Due to the male’s appearance, it is often called a ‘ladybird spider’ – a name shared with several other species in its genus.

Eresus walckenaeri

Physical Description and Identification

Adults

Size: Male: 0.6-0.9 cm, Female: 4 cm

Color: Male: The males have an appearance similar to that of a ladybug, with a red body and four black spots on the abdomen. Female: They are velvet black or purple, with a red band seen on the abdomens of particular specimens.

Other Characteristic Features: Their legs and abdomen have bristles all over them.

Eggs

Females lay around 100 eggs in a sac made of webbing.

Spiderlings

Juveniles disperse via ballooning much more than other members of their genus.

The Web

These spiders produce strikingly pink-colored webs.

Is the Broad-faced Sac Spider Venomous

Little is known about this spider’s venom, with bites rarely occurring. Even if they do, their venom is not fatal to humans.

Quick Facts

Lifespan 4-5 years
Distribution Eastern Mediterranean, including the southern Balkans, Turkey, southern Italy, and some islands in the Aegean sea
Habitat Dry, sandy soil
Diet Insects

Did You Know

  • French entomologist Gaspard Auguste Brullé first described this spider in 1832.

Image Source: