Psalmopoeus cambridgei | Facts & Information

# Psalmopoeus cambridgei | Facts & Information

Psalmopoeus cambridgei | Discover Fascinating Facts and Information About Psalmopoeus cambridgei

Species: cambridgei.As the popular name implies, the species is found in Trinidad. In the wild, adult specimens of this species are found in the canopy of trees in the forests of Trinidad, juveniles are more often found hiding in different galleries or hiding places that they build themselves.

Origin: Trinidad

Kingdom: Animalia

Phylum: Arthropoda

Class: Arachnida

Order: Araneae

Suborder: Mygalomorphae

Family: Theraphosidae

Genus: Psalmopoeus

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Psalmopoeus Cambridgei

Psalmopoeus cambridgei

Psalmopoeus cambridgei, commonly known as the red-kneed tarantula, is a fascinating species of spider native to the central region of South America. This splendid creature has always captivated the attention of terrarium enthusiasts due to its distinctive appearance and interesting behavior. In this article, we will explore the unique characteristics of Psalmopoeus cambridgei and delve into its habitat, lifestyle, and other interesting details about this tarantula.

The red-kneed tarantula is known for its colorful and attractive covering. Its carapace and legs are usually black, while the knee segments are a spectacular intense red. This color combination serves as a defense mechanism, making it appear dangerous and warning potential predators to avoid it. Adult females reach a size of 12 to 14 centimeters, while males are much smaller, measuring only 5 to 7 centimeters.

The natural habitat of Psalmopoeus cambridgei is in dense tropical forests, particularly in Guyana, Suriname, and Venezuela. These tarantulas prefer to live in trees, where they build their own nests in tree cavities or fallen logs on the ground. This arboreal lifestyle is a distinctive feature of the species and represents an evolutionary adaptation that provides them with protection against potential predators and easy access to food.

The lifestyle of Psalmopoeus cambridgei is nocturnal, meaning it is more active during the night. It spends its days resting in its nest, with its legs tightly wrapped around its body, mimicking a piece of tree bark or a dry leaf. During the night, this tarantula ventures out in search of food, hunting insects and other small invertebrates that live in its habitat.

One of the fascinating aspects of the behavior of Psalmopoeus cambridgei is its nest-building. These tarantulas use the silk they produce to construct a dense and resistant web around the tree cavities or logs in which they take shelter. This web serves primarily as a protective layer, creating a physical barrier and isolating their nest from external conditions. There is also speculation that this web may help regulate the humidity and temperature levels inside the nest.

Reproduction in Psalmopoeus cambridgei takes place through a complex mating ritual, in which the male must court and inseminate the female with a spermatophore. After mating, the female deposits the eggs in a cocoon and carefully protects them until the hatchlings emerge. The mother remains with the offspring until they are large enough to fend for themselves.

When it comes to feeding, Psalmopoeus cambridgei is a carnivorous predator. It feeds on small insects such as beetles, crickets, and flies. Providing adequate and varied food is essential for maintaining the health and development of these tarantulas in captivity.

In conclusion, Psalmopoeus cambridgei is undoubtedly a fascinating species of tarantula. Its unique characteristics, arboreal habitat, and interesting way of life make it an irresistible presence for invertebrate lovers. Studying them allows us to better understand the evolution and adaptation of these amazing creatures in a diverse environment and appreciate the complex beauty of the natural world.









Trinidad chevron tarantula (Psalmopoeus cambridgei) is part of the

Food Psalmopoeus cambridgei

The food of tarantulas should consist of: cockroaches, crickets, superworms, mealworms. As a general rule, food should be offered every 2-3 days. However, it is possible to judge when it should be offered according to the size of the tarantula's abdomen.Features Psalmopoeus cambridgei

Arboreal species, however young specimens will spend most of their time in galleries built of canvas, over which they will place substrate to camouflage themselves.

Prosoma and ophistosoma are olive-green in color, showing orange drawings on the legs. The pedipalps and the first two pairs of legs are wider towards the tips than the rear ones, with an obvious thickening of the "scopula pad", an adaptation specific to arboreal tarantulas. This tarantula does not possess hives although it is a species found in Latin America. Some consider that Psalmopoeus cambridgei is only a color variant of Psalmopoeus irminia, there are cases in which hybrids obtained from specimens belonging to these species were fertile and that Psalmopoeus cambridgei is an island species.

Specimens of this species are fast, defensive thus not recommended for beginners. It is considered by some breeders to be the most aggressive of all the species representing this genus. Dimensions at maturity: 16-17 cm, it is the species that reaches the largest sizes in the genus.


For specimens that have reached body maturity, a terrarium of 35x35x40 centimeters (Lxwxh) is recommended. The most suitable substrate would be coconut, and the thickness of the substrate should be 7-10 centimeters. After the specimen reaches 7-8 centimeters legspan should never miss the bowl with water. The temperature in the terrarium should be between 23 – 28gr Celsius, and the relative humidity of the air should be around 80%.

Being a species that requires a high level of humidity, in the terrarium of a Psalmopoeus cambridgei there may be problems in combating mold and the appearance and multiplication of mites. It is recommended that the terrarium be very well ventilated and at 2-3 weeks it is absolutely necessary to make sure that no mites have appeared.


All species of tarantulas possess venom. Although it is not very potent, bites are never placute.De just like any species of tarantula and Psalmopoeus cambridgei can be unpredictable and a bite can occur at any time. For these reasons we recommend maximum attention when the tarantula is fed, moved or when its terrarium is cleaned.

It is not recommended to handle tarantula, especially by those without experience.

Reproduction Psalmopoeus cambridgei

Due to the fact that it is a tarantula quite common in the hobby, mating attempts have been numerous, and also the rate of successful mating is quite high. For these reasons, the species is considered one of the best species for a first breeding attempt, along with Pterinochilus murinus.

From my own experience I can say that the males of this species are quite scared at the moment of mating and it is possible that mating does not take place immediately, although the females have a perfect behavior for mating it can lead to cases where the female kills the male and consumes it. There are also cases where the female lays eggs, but they are infertile.

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