Eratigena

Did you know there’s a special group of spiders called Eratigena? They live in places like Europe, Africa, and North America. Some spiders that used to have different names are now part of this group. Keep reading, and we’ll share some interesting facts about them!

Scientific Classification

Eratigena Spider

Spiders Belonging to This Genus

  • Hobo (Eratigena agrestis)
  • Eratigena arganoi
  • Giant House (Eratigena atrica)
  • Eratigena balearica
  • Eratigena barrientosi
  • Eratigena bucculenta
  • Eratigena feminea
  • Eratigena feminea
  • Eratigena fuesslini
  • Eratigena herculea
  • Eratigena hispanica
  • Eratigena incognita
  • Eratigena inermis
  • Eratigena laksao
  • Eratigena montigena
  • Eratigena picta
  • Eratigena sardoa
  • Eratigena sicana
  • Eratigena vidua
  • Eratigena vomeroi

Eratigena Atrica

Physical Description& Identification

Adult

  • Size: They are moderately big, though this varies from one species to the other. For instance, the giant House spider (Eratigena atrica) is between 15mm and 18mm (0.59 inches -0.70 inches). The hobo, on the other hand, is smaller, being 7 mm to 14 mm (0.27 inches -0.55 inches), long.  Females are larger than their male counterparts.

Eratigena size

  • Color: The species belonging to this genus mostly have a brown body, though the stripes, spots, or dots vary.
  • Other Characteristic Features: They have approximately six teeth with those nearer the spider’s body being small in size. The giant house has hairy legs, palps, and abdomen, while, the hobo has an oblong abdomen.

Eggs

They appear in a silken sac, the number being between 60 and 100.

Spiderlings

They pass through several molting phases before maturation, after which they disperse to be on their own.

The Web

Most of them build messy and untidy webs resembling a funnel.

Are Eratigena Spiders Venomous?

Yes, Eratigena spiders have venom. But don’t worry, it’s mostly harmless to humans.

Can Eratigena Spiders Bite?

Eratigena spiders can bite if they feel threatened. It might feel like a tiny pinch, but it’s usually not a big deal for most people. The hobo spider is known to be the most aggressive among the lot and their bite may be painful but not venomous.

Ecological Importance and Behavior of Eratigena Spider

Eratigena spiders play a crucial role in controlling insect populations, thanks to their predatory nature. They are primarily nocturnal, hunting during the night and resting during the day. Their presence in diverse habitats, from rocks and caves to human habitation, showcases their adaptability.

Natural Predators and Prey-Predator Dynamics: Despite their predatory nature, Eratigena spiders are not without their own natural enemies. They fall prey to wasps, ants, and other spiders, creating a balanced predator-prey dynamic in their ecosystems.

Relationship with Humans: Eratigena spiders, particularly the giant house and hobo species, often build their webs in human dwellings, including basements and dark corners. While their presence might be unnerving to some, it is important to remember their role in pest control, helping to keep populations of other insects in check.

Eratigena Image

Quick Facts

Lifespan2-3 years
DistributionContinents of Europe, Africa, America, and Central Asia
HabitatRocks, caves, fields, basements, dark, dingy areas; the Giant house and hobo build webs in human habitation
PredatorsWasps, ants, and other spiders
Diet Wasps, moths, and other spiders

Did You Know

In summary, the Eratigena spiders, with their varied species and widespread distribution, are a testament to the adaptability and resilience of spiders.

Did you know there’s a special group of spiders called Eratigena? They live in places like Europe, Africa, and North America. Some spiders that used to have different names are now part of this group. Keep reading, and we’ll share some interesting facts about them!

Eratigena Spider

Spiders Belonging to This Genus

  • Hobo (Eratigena agrestis)
  • Eratigena arganoi
  • Giant House (Eratigena atrica)
  • Eratigena balearica
  • Eratigena barrientosi
  • Eratigena bucculenta
  • Eratigena feminea
  • Eratigena feminea
  • Eratigena fuesslini
  • Eratigena herculea
  • Eratigena hispanica
  • Eratigena incognita
  • Eratigena inermis
  • Eratigena laksao
  • Eratigena montigena
  • Eratigena picta
  • Eratigena sardoa
  • Eratigena sicana
  • Eratigena vidua
  • Eratigena vomeroi

Eratigena Atrica

Physical Description& Identification

Adult

  • Size: They are moderately big, though this varies from one species to the other. For instance, the giant House spider (Eratigena atrica) is between 15mm and 18mm (0.59 inches -0.70 inches). The hobo, on the other hand, is smaller, being 7 mm to 14 mm (0.27 inches -0.55 inches), long.  Females are larger than their male counterparts.

Eratigena size

  • Color: The species belonging to this genus mostly have a brown body, though the stripes, spots, or dots vary.
  • Other Characteristic Features: They have approximately six teeth with those nearer the spider’s body being small in size. The giant house has hairy legs, palps, and abdomen, while, the hobo has an oblong abdomen.

Eggs

They appear in a silken sac, the number being between 60 and 100.

Spiderlings

They pass through several molting phases before maturation, after which they disperse to be on their own.

The Web

Most of them build messy and untidy webs resembling a funnel.

Are Eratigena Spiders Venomous?

Yes, Eratigena spiders have venom. But don’t worry, it’s mostly harmless to humans.

Can Eratigena Spiders Bite?

Eratigena spiders can bite if they feel threatened. It might feel like a tiny pinch, but it’s usually not a big deal for most people. The hobo spider is known to be the most aggressive among the lot and their bite may be painful but not venomous.

Ecological Importance and Behavior of Eratigena Spider

Eratigena spiders play a crucial role in controlling insect populations, thanks to their predatory nature. They are primarily nocturnal, hunting during the night and resting during the day. Their presence in diverse habitats, from rocks and caves to human habitation, showcases their adaptability.

Natural Predators and Prey-Predator Dynamics: Despite their predatory nature, Eratigena spiders are not without their own natural enemies. They fall prey to wasps, ants, and other spiders, creating a balanced predator-prey dynamic in their ecosystems.

Relationship with Humans: Eratigena spiders, particularly the giant house and hobo species, often build their webs in human dwellings, including basements and dark corners. While their presence might be unnerving to some, it is important to remember their role in pest control, helping to keep populations of other insects in check.

Eratigena Image

Quick Facts

Lifespan2-3 years
DistributionContinents of Europe, Africa, America, and Central Asia
HabitatRocks, caves, fields, basements, dark, dingy areas; the Giant house and hobo build webs in human habitation
PredatorsWasps, ants, and other spiders
Diet Wasps, moths, and other spiders

Did You Know

In summary, the Eratigena spiders, with their varied species and widespread distribution, are a testament to the adaptability and resilience of spiders.