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Vampire (Evarcha culicivora)

The Vampire spider is a special kind of jumping spider. It lives near Lake Victoria, close to Uganda and Kenya. Why is it called a Vampire spider? Because it loves to eat mosquitoes that suck blood, especially the female ones!

Scientific Classification

  • Family: Salticidae
  • Genus: Aptostichus
  • Scientific name: Evarcha culicivora

Vampire Spider

Physical Description and Identification

Adults

  • Size: Females are 0.15 – 0.27 inches (0.4 – 0.7 cm) on average, while the males measure approximately 0.11 – 0.23 inches (0.3 – 0.6 cm).
  • Color: Sexual dimorphism is visible when it comes to body color. The adult males have a blood-red face with white patches over their eyes. In contrast, the females appear greyish-brown with red spots.
  • Other Characteristic Features: Their bodies are covered in fine hair, adding to their unique appearance.

Eggs

Eggs are laid by female spiders and kept inside a silken sac, like other jumping spiders.

Spiderlings

The spiderlings have a close similarity to their parents, while the juveniles come with a grayish-brown face.

The Web

They spin webs that comprise silken tubes within which lies the nest built using dead leaves and grasses. The web is four and six times longer and wider than the spider’s length and width. However, when it comes to capturing prey, they mostly hunt and do not build webs for the purpose.

Are Vampire Spiders Venomous?

Yes, Vampire spiders have venom. They use it mainly to catch mosquitoes and other tiny bugs. But for people, it’s not very strong.

Can Vampire Spiders Bite?

They can bite if they’re disturbed. The bite might feel like a small pinch, but most people don’t think it’s too bad.

Ecological Importance and Behavior of Vampire Spider

Vampire spiders play a crucial role in their ecosystems by helping control mosquito populations, thus contributing to the reduction of mosquito-borne diseases. Their unique behavior of using the blood from mosquitoes as a scent to attract mates further highlights their fascinating ecological adaptations.

Natural Predators: Vampire spiders, like many other arachnids, face threats from birds, larger spiders, and certain insect species. These natural predator-prey dynamics help maintain ecological balance within their habitats.

Prey-Predator Dynamics: The Vampire spider’s role as both a predator of mosquitoes and prey for larger animals illustrates the complex interactions that sustain biodiversity and ecological equilibrium.

Relationship with Humans: While Vampire spiders are not of significant concern to humans due to their non-aggressive nature and weak venom, their unique feeding habits and striking appearance have made them a subject of interest and study.

Quick Facts

DistributionUganda and Kenya
HabitatTree trunks, walls of buildings
DietMosquitoes
LifespanNot known
IUCN Conservation StatusNot listed

Did You Know

  • Vampire spiders use the blood from mosquitoes as a scent to attract mates.

In summary, the Vampire spider stands out as a captivating example of nature’s ingenuity, showcasing unique feeding habits, striking physical characteristics, and a vital ecological role.

Image Credits: I1.wp.com

The Vampire spider is a special kind of jumping spider. It lives near Lake Victoria, close to Uganda and Kenya. Why is it called a Vampire spider? Because it loves to eat mosquitoes that suck blood, especially the female ones!

Vampire Spider

Physical Description and Identification

Adults

  • Size: Females are 0.15 – 0.27 inches (0.4 – 0.7 cm) on average, while the males measure approximately 0.11 – 0.23 inches (0.3 – 0.6 cm).
  • Color: Sexual dimorphism is visible when it comes to body color. The adult males have a blood-red face with white patches over their eyes. In contrast, the females appear greyish-brown with red spots.
  • Other Characteristic Features: Their bodies are covered in fine hair, adding to their unique appearance.

Eggs

Eggs are laid by female spiders and kept inside a silken sac, like other jumping spiders.

Spiderlings

The spiderlings have a close similarity to their parents, while the juveniles come with a grayish-brown face.

The Web

They spin webs that comprise silken tubes within which lies the nest built using dead leaves and grasses. The web is four and six times longer and wider than the spider’s length and width. However, when it comes to capturing prey, they mostly hunt and do not build webs for the purpose.

Are Vampire Spiders Venomous?

Yes, Vampire spiders have venom. They use it mainly to catch mosquitoes and other tiny bugs. But for people, it’s not very strong.

Can Vampire Spiders Bite?

They can bite if they’re disturbed. The bite might feel like a small pinch, but most people don’t think it’s too bad.

Ecological Importance and Behavior of Vampire Spider

Vampire spiders play a crucial role in their ecosystems by helping control mosquito populations, thus contributing to the reduction of mosquito-borne diseases. Their unique behavior of using the blood from mosquitoes as a scent to attract mates further highlights their fascinating ecological adaptations.

Natural Predators: Vampire spiders, like many other arachnids, face threats from birds, larger spiders, and certain insect species. These natural predator-prey dynamics help maintain ecological balance within their habitats.

Prey-Predator Dynamics: The Vampire spider’s role as both a predator of mosquitoes and prey for larger animals illustrates the complex interactions that sustain biodiversity and ecological equilibrium.

Relationship with Humans: While Vampire spiders are not of significant concern to humans due to their non-aggressive nature and weak venom, their unique feeding habits and striking appearance have made them a subject of interest and study.

Quick Facts

DistributionUganda and Kenya
HabitatTree trunks, walls of buildings
DietMosquitoes
LifespanNot known
IUCN Conservation StatusNot listed

Did You Know

  • Vampire spiders use the blood from mosquitoes as a scent to attract mates.

In summary, the Vampire spider stands out as a captivating example of nature’s ingenuity, showcasing unique feeding habits, striking physical characteristics, and a vital ecological role.

Image Credits: I1.wp.com