Birupes simoroxigorum – Bornean Neon-Blue Leg Tarantula
Overview
Birupes simoroxigorum is a breathtaking Old World tarantula species native to the rainforests of Borneo. Commonly known as the Bornean Neon-Blue Leg, this tarantula has gained massive popularity in the hobby for its electric blue legs, pinkish carapace, and overall metallic shimmer. Despite being Old World, it is often described as having a surprisingly calm temperament — making it a coveted display species for advanced hobbyists and collectors.
Quick Facts
Scientific Name: Birupes simoroxigorum
Common Name: Bornean Neon-Blue Leg
Origin: Borneo (Malaysia)
Type: Old World, Fossorial
Size: 5–6 inches (12–15 cm) leg span
Lifespan: Females 15–20 years, males 3–4 years
Temperament: Skittish and reclusive; not typically defensive but fast
Urticating Hairs: No
Webbing: Heavy burrower; creates extensive subterranean tunnel systems
Care Requirements
Enclosure: Deep fossorial setup; at least 8–10 inches of substrate
Substrate: Moist coco fiber or topsoil with good drainage
Temperature: 74–82°F (23–28°C)
Humidity: 75–85%; maintain moisture but ensure ventilation
Water: Shallow water dish; mist sides occasionally
Decor: A starter burrow, leaf litter, and cork bark
Behavior & Notes
Though it is an Old World species, Birupes simoroxigorum is often described as shy and non-aggressive, though its speed and defensiveness may increase under stress. Due to its rarity, incredible coloration, and specialized fossorial lifestyle, this species is best suited for experienced keepers. It’s not commonly seen out in the open, but when it is, it’s a true showstopper.
A must-have for serious collectors — one of the most visually stunning tarantulas in the world.