Chilean Rose Hair Tarantula, Rose-haired Tarantula, Chilean Fire Rose Tarantula
Grammostola rosea
Theraphosidae (Tarantulas), Order Araneae. Characterized by downward-pointing fangs (Mygalomorphae).
Physical Description
A medium-sized, heavy-bodied tarantula covered in dense, sensory setae. The cephalothorax is broad and slightly oval, while the abdomen (opisthosoma) is rounded and soft. This specimen appears to be a juvenile or sub-adult based on its leg-to-body ratio.
Size Estimate
Current specimen: 2-3 inch leg span. Adult range: 4.5-5.5 inches. This is likely a juvenile.
Coloration & Markings
Uniform brown to tan base with a distinct metallic pink or rose-colored sheen on the carapace. The abdomen is darker, often appearing charcoal or black beneath the lighter guard hairs.
Web Type
Terrestrial burrower; does not spin webs to catch prey. Uses silk to line its burrow and create a 'molting mat' or 'tripwires' around the entrance.
Eye Arrangement
Small ocular tubercle located at the front-center of the carapace containing eight eyes in a tight cluster; typical of theraphosids.
Leg Characteristics
Thick, powerful legs covered in fine hairs (setae). The legs lack distinct banding but may show lighter coloring at the joints. Features tarsal claws and scopulae (sticky foot pads) for climbing.
Venom & Safety Information
Venom Information
Possesses mild, protein-based venom intended for paralyzing small invertebrates. Not considered medically significant to healthy humans.
Medical Significance
Low danger level. Bites are rare and usually comparable to a bee sting. The primary medical concern is the urticating (stinging) hairs, which can cause skin irritation or eye respiratory issues.
Safety Recommendations
Use long forceps for feeding. Do not handle unless necessary, and never hold the spider high above the ground, as a fall can burst their abdomen. Wash hands after touching the enclosure to avoid urticating hair transfer.
Habitat & Behavior
Habitat & Range
Native to the Atacama Desert region of northern Chile, Bolivia, and Argentina. Prefers xeric (dry) scrublands and desert edges.
Behavior & Temperament
Generally docile and slow-moving. It is a sit-and-wait ambush predator. When threatened, it is more likely to retreat or flick urticating hairs than to bite.
Diet & Prey
Carnivorous. Diet consists primarily of insects like crickets, roaches, and mealworms. Large adults may occasionally take small vertebrates in the wild.
Seasonal Activity
Active year-round in stable captive environments; in the wild, activity peaks during the warmer, wetter months of the Southern Hemisphere.
Description
The Chilean Rose Hair is perhaps the most iconic pet tarantula in the world. Known for its hardy nature and beautiful rosy carapace, it represents the archetypal desert-dwelling mygalomorph. Its presence in a plastic enclosure with substrate suggests it is being kept as a captive pet or is a recent rescue.
Key Features
Metallic pink carapace, dense tan/brown hairs, terrestrial body shape, and the absence of bright leg banding common in other Chilean species.
Similar Species
Grammostola porterii (often indistinguishable without genetic testing), Paraphysa scrofa (smaller and more red-toned).
Life Cycle
Females can live over 20 years; males significantly less (around 5 years). Reproduces via egg sacs containing 50-200 spiderlings. Growth occurs through periodic molting.
Ecological Importance
Acts as a key arthropod predator in desert ecosystems, controlling populations of beetles and grasshopers.
Conservation Status
Not currently listed by the IUCN, but wild populations are pressured by the exotic pet trade and habitat loss.
Interesting Facts
Environmental scientists use this species to study desert adaptations. They are known for 'fasting' and can go several months without eating if they are preparing to molt or are stressed.
Photography Tips
Shoot from a low angle to capture the 'face' and eye cluster. Use soft, diffused light to highlight the metallic pink sheen on the carapace without creating harsh glare on the plastic tub.
Identified: 2026-07-14T17:08:45.094567