Mexican Fireleg Tarantula, Guerrero Orange Leg Tarantula
Brachypelma boehmei
Theraphosidae (Tarantulas), Order Araneae. Characterized by heavy bodies, prominent fangs, and urticating hairs.
Physical Description
A stout-bodied terrestrial spider covered in fine hairs. It features a dark cephalothorax with a creamy or tan border and a dark abdomen. The legs are notably vibrant, with long setae and a distinct segment-based color transition.
Size Estimate
The specimen pictured is a juvenile with a leg span of approximately 2-3 inches. Adults reach a leg span of 5-6 inches with a body length of about 2.5 inches.
Coloration & Markings
Features a dark star-shaped pattern on the carapace. The patella, tibia, and metatarsus of the legs are a bright, fiery orange-red, while the tarsi (feet) and femur are dark blackish-brown.
Web Type
Terrestrial opportunistic burrower. They do not build typical webs for prey capture but line their burrows and surrounding entrance with heavy silk for structural support and vibration sensing.
Eye Arrangement
A small ocular tubercle located on the front of the carapace containing eight eyes arranged in a compact, two-rowed cluster.
Leg Characteristics
Robust, hairy legs with thick orange setae on the lower segments. They possess specialized urticating hairs on the abdomen and legs that can be flicked at predators. Tips of legs have microscopic claws and adhesive tufts for climbing.
Venom & Safety Information
Venom Information
Possesses mild cytotoxic venom. It is not considered medically significant to healthy humans, though it is effective for paralyzing small insect prey.
Medical Significance
Low danger level. Bites are rare and comparable to a bee sting in localized pain and swelling. The primary medical concern is the urticating hairs, which cause intense itching and respiratory or ocular irritation.
Safety Recommendations
If keeping as a pet, avoid handling to prevent 'hair kicking.' Use tongs for feeding. If hairs contact skin, wash with soap and water; use tape to remove hairs. Seek medical help only if an allergic reaction occurs.
Habitat & Behavior
Habitat & Range
Endemic to the Pacific coast of Mexico, specifically the Balsas River basin in Guerrero and Michoacán. Prefers tropical deciduous forests and dry thorn forests.
Behavior & Temperament
Generally skittish rather than aggressive. If threatened, they are more likely to kick urticating hairs from their abdomen than to bite. They are slow-moving, terrestrial active hunters.
Diet & Prey
Invertebrates such as crickets, roaches, and mealworms. In the wild, they may occasionally take small vertebrates like lizards or frogs. They hunt by ambush, sensing vibrations on the ground.
Seasonal Activity
Activity peaks during the rainy season when humidity is higher and mating occurs. During the dry season, they remain deep in burrows to conserve moisture.
Description
This striking arachnid is a jewel of the Mexican dry forest. Known for its intense orange leg segments and relatively calm disposition, it is a favorite in the pet trade. As a 'New World' tarantula, it relies on defensive hairs rather than potent venom for protection.
Key Features
High-contrast fiery orange-red legs against a dark brown/black body; orange coloration specifically on the patella through metatarsus; dark central patch on the carapace.
Similar Species
Brachypelma hamorii (Mexican Red Knee) which has orange patches only on the joints, and Brachypelma baumgarteni which has different orange saturation patterns.
Life Cycle
Females can live up to 20-25 years; males have significantly shorter lifespans (5-7 years). Females produce an egg sac containing 200-600 eggs. Growth is slow, with multiple molts requiring several years to reach maturity.
Ecological Importance
Apex invertebrate predator in its native habitat, providing crucial natural pest control by regulating insect populations. They also serve as a food source for larger predators like coatis and birds of prey.
Conservation Status
Listed as Endangered on the IUCN Red List and protected under CITES Appendix II due to habitat loss and historical over-collection for the pet trade.
Interesting Facts
The 'Fireleg' is one of the most long-lived tarantulas in captivity. They are 'sensitive' spiders that can go months without food during a premolt phase, where they refuse prey to prepare for shedding their exoskeleton.
Photography Tips
Focus on the carapace to capture the eye arrangement and the 'star' pattern. Use diffused natural light to highlight the orange saturation of the legs without causing glare on the enclosure plastic.
Identified: 2026-06-19T16:37:20.721751