Home / Tarantulas / Brazilian Redrump Tarantula (Grammostola actaeon)
Brazilian Redrump Tarantula (Grammostola actaeon)
Discover the Brazilian redrump tarantula, a unique spider native to southern Brazil. This tarantula shares striking resemblances with the Grammostola gigantea and Grammostola iheringi. Keep reading to uncover fascinating details about this captivating creature!
Size: Adult Brazilian redrump tarantulas boast a significant size range of 12-15 cm.
Color: Their overall body is black, except their abdomen which is covered in dark red setae.
Other Characteristic Features: These tarantulas will kick the urticating hairs on their limbs as a defense.
Eggs
They produce fewer eggs compared to other tarantulas, only 40-50. However, these eggs are considerably larger than that of most other spider species.
Spiderlings
Spiderlings are dark grey initially before taking on the coloration of the adults.
The Web
These spiders only produce webbing to cover their eggs inside a small sac.
Are Brazilian Redrump Tarantulas Venomous?
Yes, Brazilian Redrump Tarantulas have venom, like most tarantulas. However, their venom is generally not harmful to humans and is used mainly to capture their prey.
Can Brazilian Redrump Tarantulas Bite?
Yes, they can bite if threatened or provoked. While the bite might be painful due to their large fangs, it’s usually not dangerous for humans.
Ecological Importance and Behavior of Brazilian Redrump Tarantula
The ecological significance of the Brazilian redrump tarantula cannot be overstated. As a predator, it plays a pivotal role in controlling populations of insects and other small animals, thus maintaining a balanced ecosystem. Their behavior reflects a remarkable adaptation to their environment, living in temperate forest habitats where they contribute to the biodiversity of the region.
Natural Predators: Despite their formidable appearance, Brazilian redrump tarantulas have natural predators, including birds, larger mammals, and other species of spiders. Their survival strategies include the use of urticating hairs and venom to deter these predators, along with their tendency to seek refuge in burrows or under logs and rocks.
Prey-Predator Dynamics: Their diet primarily consists of crickets, dubia roaches, locusts, and mealworms, which they skillfully capture using their venom and agility. This predatory behavior is essential in regulating the prey populations and preventing any single species from becoming overly dominant, which could disrupt the ecological balance.
Relationship with Humans: The relationship between humans and Brazilian redrump tarantulas is multifaceted. While some people keep them as pets due to their fascinating appearance and behavior, others may view them with fear. Nonetheless, they are an essential part of their native ecosystems and have minimal adverse interactions with humans.
Quick Facts
Other names
Brazilian wooly black tarantula
Lifespan
Males: 6 years, Females: 15-20 years
Distribution
Southern Brazil, also parts of Uruguay
Habitat
Forests with temperate climates
Diet
Crickets, dubia roaches, locusts, and mealworms
Did You Know
British zoologist Reginald Innes Pocock F.R.S. first described this spider in 1903.
In conclusion, fascinating yet harmless, the Brazilian Redrump Tarantula is a striking species with a modest bite.
A Brazilian Redrump tarantula has a striking appearance with a mostly black body. Its most defining characteristic is its abdomen, which is covered in dark red setae, or hairs. This coloration provides a distinct contrast, making the species easily identifiable compared to other tarantulas with more uniform coloring.
Adult Brazilian Redrump tarantulas grow to a significant size, typically reaching a leg span of 12 to 15 centimeters (about 4.7 to 5.9 inches). This makes them a relatively large terrestrial species within the Grammostola genus, contributing to their impressive presence as mature spiders in their natural habitat.
The Brazilian Redrump tarantula’s primary defense mechanism is to kick urticating hairs from its limbs when it feels threatened. These barbed hairs are designed to irritate the skin and mucous membranes of potential predators. This behavior is a common defensive strategy among New World tarantula species to deter threats.
No, the venom of a Brazilian Redrump tarantula is generally not considered dangerous to humans. Like most tarantulas, it possesses venom primarily to subdue its prey. A bite may cause localized pain and swelling due to the large fangs, but it is not medically significant for most individuals.
A female Brazilian Redrump tarantula lays a relatively small clutch of 40 to 50 eggs. While this number is lower than many other tarantula species, the individual eggs are considerably larger. The female encases these eggs in a small silk sac to protect them until they hatch.
The natural habitat of the Brazilian Redrump tarantula is the temperate forest ecosystems located in southern Brazil. As a terrestrial species, it is adapted to this specific environment where it lives and hunts on the forest floor, contributing to the region’s biodiversity by controlling insect populations.
No, Brazilian Redrump tarantulas do not spin webs to capture prey. They are ambush predators that hunt on the ground. The only significant webbing they produce is a small silk sac that females create to enclose and protect their eggs, rather than for the purpose of trapping food.