Chilean Rose Tarantula, Chilean Rose Hair Tarantula, Rose Hair
Grammostola rosea
Theraphosidae (Tarantulas), Order Araneae
Physical Description
Robust body covered in dense setae (hairs) with a distinct oval abdomen and a flat, broad carapace. Noticeable sexual dimorphism is subtle, though males tend to have slightly longer legs and tibial hooks, while females are bulkier and longer-lived.
Size Estimate
Body length around 5 to 7 centimeters (2 to 2.7 inches) with a total leg span reaching 12 to 14 centimeters (4.7 to 5.5 inches). This specimen appears to be a healthy sub-adult or adult.
Coloration & Markings
Base coloration ranges from deep brown to grey, overlaid with distinctive pink, rose, and reddish hairs covering the carapace and legs, giving it a soft, velvety appearance.
Web Type
Ground-dwelling ambush predator that does not spin traditional capture webs. They line their burrows or preferred hiding spots with a thin layer of silk for traction and stability.
Eye Arrangement
Eight small eyes clustered closely together on a raised median ocular tubercle located at the front center of the carapace, typical of mygalomorph spiders.
Leg Characteristics
Eight long, thick legs covered in long sensory setae and shorter velvety hairs, featuring specialized scopulae pads on the tarsi to aid in climbing smooth surfaces, adopting a calm, sprawled resting posture.
Venom & Safety Information
Venom Information
Contains mild neurotoxic and myotoxic venom. Potency relative to humans is very low, generally comparable to a bee or wasp sting, and is rarely medically significant unless an allergic reaction occurs.
Medical Significance
Harmless to humans. A bite may cause localized pain, redness, and minor swelling, but serious systemic effects are extremely rare. The primary defense to be mindful of is the release of irritating urticating hairs.
Safety Recommendations
Handle gently and infrequently to avoid stressing the spider or inducing hair-flicking. If bitten, wash the area with soap and water and apply a cold compress. Avoid touching the eyes if urticating hairs are present.
Habitat & Behavior
Habitat & Range
Native to the arid scrublands, deserts, and grasslands of northern and central Chile, extending into parts of Bolivia and Argentina, typically seeking shelter under rocks, logs, or in abandoned rodent burrows.
Behavior & Temperament
Generally docile, slow-moving, and calm, making them one of the most popular beginner pet tarantulas. When threatened, they may rear up or flick urticating hairs from their abdomen rather than bite.
Diet & Prey
Carnivorous ambush predator feeding primarily on large insects such as crickets, roaches, beetles, and occasionally small vertebrates like pinkie mice, subduing prey with venomous fangs.
Seasonal Activity
Active year-round in captive environments, but in the wild, activity peaks during warmer months, with mating occurring primarily in the spring and summer seasons.
Description
The Chilean Rose Tarantula is a magnificent ground-dwelling spider known for its gentle nature and striking rosy hues. As an iconic species in the exotic pet trade, it combines hardiness with a calm demeanor, navigating the arid terrains of South America as a patient and efficient nocturnal hunter.
Key Features
Distinctive pinkish-red hairs over a dark brown or grey body, robust mygalomorph build, absence of a traditional web, and a characteristically docile temperament.
Similar Species
Grammostola pulchra (Brazilian Black) which is entirely black, and Grammostola actaeon, which can be distinguished by specific subtle variations in leg hair coloration and geographical origin.
Life Cycle
Females deposit up to 500 eggs into a silken egg sac. Spiderlings hatch and disperse after multiple molts. They grow very slowly, with females living upwards of 20 to 25 years, while males have a much shorter lifespan after reaching maturity.
Ecological Importance
Acts as an apex invertebrate predator in its native ecosystem, helping regulate populations of insects and small vertebrates while serving as prey for larger desert mammals and birds.
Conservation Status
Not formally evaluated by the IUCN, but populations face local pressures from habitat destruction, agricultural expansion, and over-collection for the pet trade.
Interesting Facts
Chilean Rose Tarantulas can survive for months without food and can endure long periods of drought in their native desert habitats by slowing their metabolism.
Photography Tips
Photograph in natural lighting or with a diffused flash to highlight the delicate pink sheen on the hairs. Maintain a safe, calm distance to avoid causing defensive behavior or startling the spider.
Identified: 2026-09-12T04:56:44.542742