Trinidad Chevron Tarantula
Psalmopoeus cambridgei
Theraphosidae (Tarantulas), Order Araneae
Physical Description
Robust arboreal body structure with a rounded abdomen and elongated legs well-suited for climbing. The carapace and legs are covered in dense, velvety setae, while the abdomen features a distinct chevron pattern.
Size Estimate
Leg span of approximately 6 to 7 inches (15 to 18 cm) as an adult; the specimen shown appears to be a juvenile or sub-adult.
Coloration & Markings
Olive-brown to grayish-brown base coloration with striking yellowish-orange chevron (V-shaped) markings running down the dorsal surface of the abdomen.
Web Type
Does not spin an orb web; creates a tubular silk retreat inside tree bark crevices, hollows, or between foliage, reinforced with webbing.
Eye Arrangement
Typical tarantula eye arrangement consisting of eight small eyes grouped closely together on a raised tubercle on the anterior portion of the carapace.
Leg Characteristics
Long, robust legs with heavy scopulae (dense pads of hair) on the tarsi and metatarsi to facilitate climbing smooth vertical surfaces. They lack urticating hairs, relying instead on speed and venom.
Venom & Safety Information
Venom Information
Neurotoxic and proteolytic components typical of Old World and certain New World arboreal tarantulas. More potent than many terrestrial tarantula venoms, though generally not considered medically significant to healthy humans.
Medical Significance
Bites can be painful, causing localized swelling, throbbing pain, and muscle cramps, but are rarely dangerous unless an allergic reaction occurs.
Safety Recommendations
Best observed from a distance. If handling or rehousing, use long tongs and secure enclosures to prevent escapes due to their extreme speed.
Habitat & Behavior
Habitat & Range
Native to the tropical rainforests of Trinidad and Tobago, inhabiting high moisture environments, arboreal retreats, and hollow trees.
Behavior & Temperament
Fast-moving, arboreal ambush hunter. Can be defensive and high-strung, preferring to flee or display a threat posture rather than bite, though they are capable of quick movement.
Diet & Prey
Carnivorous; feeds primarily on large insects, crickets, roaches, and occasionally small lizards or vertebrates, captured by ambush near its retreat.
Seasonal Activity
Active year-round due to the tropical climate of its native habitat, with increased breeding activity during the rainy season.
Description
The Trinidad Chevron Tarantula is a stunning arboreal species prized for its speed, agility, and distinct abdominal chevron markings. Living high in the rainforest canopy of Trinidad, it builds intricate silk retreats in tree crevices and waits for passing prey.
Key Features
Distinct yellowish-orange chevron patterns on the abdomen, olive-brown velvety appearance, long arboreal legs, and lack of urticating hairs.
Similar Species
Psalmopoeus irminia (Sun Tiger Tarantula), which features brighter orange striping and a darker blackish base color.
Life Cycle
Females produce egg sacs containing up to 150-200 eggs. Spiderlings disperse shortly after hatching. Molts frequently during growth phases, living up to 12-15 years for females.
Ecological Importance
Acts as an apex predator among invertebrates in its rainforest ecosystem, helping control insect populations and serving as prey for birds and reptiles.
Conservation Status
Not evaluated by the IUCN, but facing localized threats from deforestation and the pet trade.
Interesting Facts
Despite being New World tarantulas, Psalmopoeus species lack urticating hairs entirely, a defense mechanism common to other American tarantulas.
Photography Tips
Use natural or diffused lighting to highlight the metallic sheen and chevron markings. Maintain a safe distance as they can jump or bolt unexpectedly.
Identified: 2026-09-03T23:27:20.829272