Usambara Orange Starburst Tarantula for sale from Big Z's (Pterinochilus murinus). Spice-rated keeper notes, care guidance, and live-arrival packing where eligible.
Blaze orange, wall-to-wall silk, and the fastest temper in the hobby.
Pterinochilus murinus in the Usambara orange form is the spider the hobby nicknamed the OBT, and the colour is not an exaggeration: a grown one is a burnt-orange starburst with the carapace pattern radiating out from the centre. It comes out of East Africa, and at 1 inch these are slings already laying down silk faster than they can outgrow it. Adults reach roughly 5 to 6 inches across and get there quickly.
Nothing about this animal is subtle. It is fast, defensive, quick to stand up and stay standing, and a strict no-handling species for keepers who already have Old World experience. What it wants is easy to give: dry substrate deep enough to burrow, vertical cork anchor points because it webs heavily and goes semi-arboreal, and a secure enclosure you open with a plan. It will web the entire interior into a tunnel system and live inside it. Spice Level 4: Advanced. Read the matched Big Z's care guide before it ships.
The numbers live in the care guide. Enclosure size, temps, humidity, feeding schedule, premolt signs, handling boundaries: it's all in the care guide for this exact fella. Start with the full Advanced guide, or click for the quick Open the Simple version →
Tarantula
Usambara Orange Starburst Tarantula (Pterinochilus murinus) care guide Read shipping & LAG
Usambara Orange Starburst Tarantula for sale from Big Z's (Pterinochilus murinus). Spice-rated keeper notes, care guidance, and live-arrival packing where eligible.
Blaze orange, wall-to-wall silk, and the fastest temper in the hobby.
Pterinochilus murinus in the Usambara orange form is the spider the hobby nicknamed the OBT, and the colour is not an exaggeration: a grown one is a burnt-orange starburst with the carapace pattern radiating out from the centre. It comes out of East Africa, and at 1 inch these are slings already laying down silk faster than they can outgrow it. Adults reach roughly 5 to 6 inches across and get there quickly.
Nothing about this animal is subtle. It is fast, defensive, quick to stand up and stay standing, and a strict no-handling species for keepers who already have Old World experience. What it wants is easy to give: dry substrate deep enough to burrow, vertical cork anchor points because it webs heavily and goes semi-arboreal, and a secure enclosure you open with a plan. It will web the entire interior into a tunnel system and live inside it. Spice Level 4: Advanced. Read the matched Big Z's care guide before it ships.
The numbers live in the care guide. Enclosure size, temps, humidity, feeding schedule, premolt signs, handling boundaries: it's all in the care guide for this exact fella. Start with the full Advanced guide, or click for the quick Open the Simple version →
Pterinochilus murinus group - Spice 4: Advanced. Baby Buddy: spiderlings only (escape-proof ventilation; rehouse up before it's cramped); Burrow Buddy: grow-out for juveniles; give it deep substrate plus vertical cork anchor points (this one webs heavily and goes semi-arboreal); Roomier webbed custom enclosure for the adult
Pterinochilus murinus group
Identity confidence: provisional. This is a genus, group, or trade name rather than a confirmed species. Treat it as the closest match we can stand behind, and use the more conservative end of any range.
Big Z's Quick Verdict: A fast, defensive, heavy-webbing Old World group for experienced keepers: the 'Orange Bitey Thing'. Adults reach about 5-6 inches across and grow fast.
| Temp | 75-85°F |
|---|---|
| Humidity | Low-Moderate ambient (45-60%) with strong cross ventilation; dry substrate, full dish |
| Setup | Dry webbing terrestrial/semi-arboreal |
| Substrate | Dry substrate + web anchors |
| Feeding | Weekly |
| Handling | NEVER |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
Current Big Z's catalog: No
Pterinochilus murinus group
Identity confidence: provisional. This is a genus, group, or trade name rather than a confirmed species. Treat it as the closest match we can stand behind, and use the more conservative end of any range.
Keeper Snapshot: A fast, defensive, heavy-webbing Old World group for experienced keepers: the 'Orange Bitey Thing'. Adults reach about 5-6 inches across and grow fast.
| Temperature | 75-85°F |
|---|---|
| Humidity | Low-Moderate ambient (45-60%) with strong cross ventilation; dry substrate, full dish |
| Setup Type | Dry webbing terrestrial/semi-arboreal |
| Substrate | Dry substrate + web anchors |
| Feeding | Weekly |
| Care Difficulty | Spice 4: Advanced |
| Handling | NEVER |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
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