Pterinochilus murinus 'Usambara' – Orange Baboon Tarantula | RCF Red Color Form | Live Arrival Guarantee

Size, life stage & quantity options

Choose the exact option from the product selector before adding this item to your cart.

• Size / stock option: 3/4-1"
• Size / stock option: Mature Male
• Size / stock option: 3 to 4" Female
• Size / stock option: Subadult/Adult Male & Female Pair

Options labeled as a pair include the pair described in that option. Other size or sex options are separate selections.

Measurements are reproduced as listed in the ordering options. If you need a specific body length or leg span, please confirm the measurement with us before ordering.

For a quantity, sex, or life stage not specified in your chosen option, contact Isopod King before purchasing.

The Pterinochilus murinus 'Usambara', commonly known as the Orange Baboon Tarantula or OBT (Orange Bitey Thing), is the classic and most recognizable terrestrial species from Tanzania's Usambara Mountains. This iconic RCF (Red Color Form) displays vibrant orange-red coloration that has made it one of the most popular Old World tarantulas in the hobby. Known for its bold personality, impressive size, and stunning coloration, this species is highly sought after by experienced collectors who appreciate Old World tarantulas with attitude and beauty.

Why Choose Pterinochilus murinus 'Usambara'?

• Classic RCF Form: Vibrant orange-red coloration represents the iconic Red Color Form that made this species famous
• Impressive Size: Reaches 5-6 inch leg span at maturity with a robust, heavy-bodied build
• Bold Personality: Confident and defensive nature makes for engaging (from a distance) observation
• Iconic Species: The original "Orange Bitey Thing" that introduced countless keepers to Old World tarantulas
• Fast Growth Rate: Develops quickly from sling to adult, revealing stunning colors with each molt

Natural Habitat & Behavior

In their native Usambara Mountains of Tanzania, Pterinochilus murinus inhabit scrubland, savanna, and semi-arid environments where they create deep burrows or occupy existing crevices. They are opportunistic burrowers and will extensively modify their enclosure with webbing and substrate manipulation. This species is known for its defensive nature and willingness to stand its ground, often displaying threat postures with raised front legs. They are voracious feeders with impressive appetites and will readily take down prey items with speed and aggression, earning them the affectionate nickname "Orange Bitey Thing."

Care Requirements

• Enclosure: Terrestrial setup with at least 3-4 inches of substrate for burrowing; provide a hide or cork bark
• Temperature: 75-82°F with slight nighttime drop acceptable
• Humidity: 60-70% with good ventilation; keep one side slightly moist
• Feeding: Crickets, roaches, or appropriately sized insects once or twice weekly; known for aggressive feeding responses
• Experience Level: Advanced due to defensive nature, speed, and potent venom (Old World species)

What's Included

Your Pterinochilus murinus 'Usambara' arrives healthy and ready to thrive, backed by our Live Arrival Guarantee. Each specimen is carefully packaged with premium insulation and temperature control (heat or cold packs as needed) to ensure safe transit regardless of weather conditions. Comprehensive care instructions are included with every order to help you provide the best environment for your new tarantula.

Ethical Sourcing & Quality Guarantee

We partner exclusively with responsible captive breeders who prioritize animal welfare and genetic diversity. Every tarantula undergoes thorough health inspection before shipping. Your satisfaction and the well-being of our animals are our highest priorities.

Add this iconic African beauty to your collection today and experience the bold presence of the classic Orange Baboon Tarantula!

📋 Care Sheet by The Tarantula Collective