Red Knee Tarantula

Inhabits the Pacific Mountains of Mexico!
Red Knee Tarantula Scientific Classification
Scientific name
Brachypelma smithi
Red Knee Tarantula Physical Characteristics
Brown, Red, Black, White
20-30 years
Top speed
18 mph
15-16g (0.5-0.6oz)
Red Knee Tarantula Distribition

The Red knee tarantula is a desert- residence spider.

Rather than rotating an internet, these spiders dig burrows and invest the majority of their lives underground. They have a lengthy life-span contrasted to various other spiders. Males can meet 10 years whereas females can possibly get to thirty years old. They are predators consuming a diet of crickets, grasshoppers, cockroaches, lizards, frogs, and occasionally tiny mice.

5 Amazing Red Knee Tarantula Realities!

  • This spider is among over 1,000 species of tarantula.
  • These arachnids conceal in their burrow waiting to get an insect or rodent passing away by.
  • The 8 eyes on the head of this spider permit it to see what remains in front of it and behind it!
  • A female red knee tarantula can lay from 200 to 400 eggs each time.
  • There are 2 claws on completion of each leg that permit this spider to climb up a glossy surface area.

Red Knee Tarantula Species, Kind, and Scientific Name

The scientific name of the red knee tarantula is Brachypelma smithi The Greek word Brachypelma suggests brief (brachys) sole/foot (pelma). Words smithi connects to this certain species of tarantula. Red knee arachnids, likewise called the Mexican red knee tarantula, come from the Theraphosidae family and the order Araneae.

There are 1,010 species of tarantula. Tarantulas are various from various other sorts of spiders because they constantly have hair on their body and legs. Additionally, while the majority of spiders have 6 spinnerets for rotating internet, some sorts of arachnids have 4 spinnerets while others have 2. Additionally, a tarantula’s feet have glands in them that generate silk while spiders have these glands in their abdominal area.

The red knee tarantula comes from the genus Brachypelma A few of the various other arachnids that come from this genus consist of:

  • Brachypelma auratum
  • Brachyplema albiceps
  • Brachyplema andrewi
  • Brachyplema aureoceps
  • Brachyplema baumgarteni
  • Brachyplema boehemi
  • Brachyplema emilia
  • Brachyplema fossorium
  • Brachyplema hamorii
  • Brachyplema klaasi
  • Brachyplema smithi

Appearance: Exactly How to Determine a Red Knee Tarantula

The red knee tarantula has a huge abdominal area including dark brownish hairs. Its cephalothorax includes dark brownish and lotion- tinted hairs. This spider has brilliant red or orangish hairs on each of its knee joints. This pigmentation gained this spider its name.

The vivid hairs on this spider’s legs are created to notice resonances in the ground. The resonances assist these spiders to securely browse their atmosphere. They likewise have palps that assist them to taste and scent points.
Infant red knee tarantulas or spiderlings do not have the complete pigmentation of a grownup. Their body does not begin to handle the dark brownish and red/orange color scheme up until they are numerous months old.

In regards to dimension, red knee tarantulas are 5 to 6 inches long and consider approximately 0.5 ounces. The biggest size of this spider is 10 inches. Contrast this to one more tarantula called the Goliath bird- consuming tarantula. The Goliath bird- consuming tarantula has a leg period gauging 11 inches in size. Not remarkably, it’s called the Goliath tarantula because of its dimension!

Typically, a red knee tarantula hides in its burrow if it really feels endangered by a killer. Occasionally it stands on its back legs to disclose its fangs to frighten the danger away. Among one of the most intriguing realities concerning this spider is it has actually barbed hairs on the bottom of its abdominal area. It can fire these barbed hairs at predators to safeguard itself. These hairs can lodge in a killer’s body creating itching and irritability. If they land in a killer’s eyes they can trigger short-term loss of sight.

This tarantula leads a singular life other than throughout the reproducing period.

Brachypelma hamorii - giant Mexican Red Knee Tarantula on a human hand.
Brachypelma hamorii – gigantic Mexican Red Knee Tarantula on a human hand.Vladimira Pufflerova/

Environment: Where to Locate a Red Knee Tarantula

Red knee arachnids can be discovered in Mexico, Panama, and the southwestern component of the USA. They reside in a desert environment in addition to in scrublands and completely dry woodlands. In a desert, this spider might dig a burrow at the base of a cactus!

Red knee arachnids have a timid character and seek concealing locations. A wild red knee tarantula might locate its means right into a shed or garage and make a house in between a pile of old boxes or behind a dirty collection of mops, shovels, and so on. Or else, if a red knee tarantula remains in a residence, it’s typically a pet!

Diet: What Do Red Knee Tarantulas Eat?

Red knee arachnids are predators. Among one of the most remarkable realities concerning these spiders is they typically allow their food pertained to them. This spider conceals in its burrow and waits on a lizard, cricket, or various other victim to go into the location. When the animal obtains close sufficient, the tarantula gets it and offers it a poisonous bite. As soon as their victim is paralyzed, the poison liquifies the within the animal. The spider eats the liquified within its victim.

What consumes the red knee tarantula?

Predators of this vivid spider consist of birds, huge lizards, and the Pepsis wasp aka the Tarantula hawk wasp.

An infant red knee tarantula is a lot more vulnerable to being caught by a killer.

What does the red knee tarantula eat?

These spiders eat crickets, grasshoppers, rodents, tiny lizards, frogs, and cockroaches. They eat whatever animal is most plentiful in their desert environment. An infant tarantula consumes the exact same sort of victim, yet smaller sized in dimension.

Typically, these spiders eat a couple of times each week. A month or 2 prior to molting, these arachnids typically quit consuming. This is so they can concentrate on this demanding procedure. A tarantula molts lot of times throughout its lengthy life-span.


  1. Wikipedia, Available here:
  2. Smithsonian’s National Zoo & Conservation Biology Institute, Available here:
  3. Arizona-Sonora Desert Museum, Available here:
  4. Giant Spiders, Available here:
  5. Maryland Zoo, Available here:

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