King baboon spider

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King baboon spider

The king baboon spider, scientific name Pelinobius muticus, is a tarantula species native to East Africa. It is the only species in the genus Pelinobius. The king baboon spider can grow up to 20 cm in leg span. It is a slow-growing species. The spider is often rusty brown or orange in colour. As a burrowing species, the back legs are very thick and used for digging burrows. It is popular among tarantula collectors but is highly defensive and not suitable for beginners. They also have very strong venom; a bite from a baby of this species caused sharp pain and the place of the bite remained itchy for five days.

Scientific classification

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Chelicerata
  • Class: Arachnida
  • Order: Araneae
  • Infraorder: Mygalomorphae
  • Family: Theraphosidae
  • Genus: Pelinobius
  • Species: P. muticus
  • Binomial name: Pelinobius muticus


The King Baboon Spider (Pelinobius muticus) is one of the most talked-about spiders in tarantula keeping circles. They are renowned as one of the easiest to keep tarantulas in terms of their car and hardiness, and are prized for their large size when mature, as well as their aggressive threat displays. They are popular tarantulas and can sometimes be found for sale in retailers that specialise in arachnids, which often leads the beginner tarantula keeper to believe that they make a good first tarantula, or are a good pick for the novice keeper.


Different geographic regions of Kenya experience different climate. The coastal area is generally damp and wet, with an average of 1,050 mm per year. of precipitation, the average temperature ranges between 21 ° C to 32 ° C and January (20 ° to 29 ° C) in July (68 ° to 84 ° F) lower plateau area in the country’s dryest part Where it is, the average annual rainfall receives 320 mm (13 inches) and in January the average temperature ranges from 19 ° to 37 ° C and from 19 ° to 34 ° C (66 ° to 93 °). F) In Nairobi, temperate Kenya Highlands in July, receives annual rainfall in an average of 790 mm (31 in) and in January it averages 9 ° to 29 ° C  and the average temperature is 7 ° to 26 ° C ( 45 ° to 79 ° F) in July.


While the King Baboon Spider eats the same types of live prey as other tarantulas (such as crickets, mealworms and earthworms that are readily available to buy from pet shops or order online ) getting their feeding just right is a delicate balance.

It is all too easy to inadvertently feed too much or too little, and hard to identify if this is happening.

They generally eat a relatively significant amount, as you would expect from a spider of their size, but may also overeat which can lead to problems. King Baboon Spiders often take their live prey back into their burrow to eat (or not) which can make it hard to know if your spider has actually eaten what you gave them, or if there are dead insects and worms rotting away in the burrow; which in their turn, can be a challenge to remove safely!


The king baboon spider is a burrowing spider. It puts silk at the burrow’s entrance to detect vibrations. These spiders hunt beetles, cockroaches, and other spiders, although they can kill mice, lizards, snakes, and birds. Like all old world spiders, the king baboon tarantula has no urticating hairs, and can be very defensive.

When provoked, they rear up, and strike down repeatedly. This is one of only a few theraphosid spiders that can stridulate as a major defense mechanism. The stridulation sound effect is produced by rubbing the femurs of the first and second pair of legs, which, when combined with rearing up, produces a formidable defense. The king baboon spider is preyed upon by birds, baboons, and other mammals.

King baboon spider images

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