Cerbalus negebensis
Desert Huntsman Spider: Advanced Care Guide
Keeper Snapshot: A stocky, fast desert huntsman from the rocky Negev that hides under flat stones instead of open sand. Keep it bone dry with low vents that move air under the rocks, and secure the lid first.
Group: Spiders & Other InvertsDifficulty: Spice 3: IntermediateSetup: Dry stony-desert burrower, wide floor spaceHandling: Not recommended, extreme flight risk
Use This Guide Safely
- Confirm the exact animal. Match this guide to the species, locality, size, and life stage on your label. If the ID is uncertain, use the more conservative part of the range and ask before changing the setup.
- Change one thing at a time. Treat temperature and humidity as target zones, then watch posture, burrowing, drinking, feeding, and molt behavior before making another adjustment.
- Respect the handling boundary. If the guide says no handling, fast, defensive, or medically significant, plan transfers with catch cups, locked lids, and no bare hands. For serious bites, stings, or symptoms, seek emergency medical care.
Quick Snapshot
| Temperature | 78-88°F |
|---|---|
| Humidity | Dry (25-40%), bone-dry substrate, pebble dish |
| Setup Type | Dry stony-desert burrower, wide floor space |
| Substrate | 3-4 in dry sand/soil, flat rocks or cork bark |
| Feeding | Prey up to 1 in, juveniles every 5-7 days, adults 10-14 days |
| Care Difficulty | Spice 3: Intermediate |
| Handling | Not recommended, extreme flight risk |
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%+
Enclosure Format / Size Class
- Young juveniles: Baby Buddy with dry substrate, a flat retreat, and a gap-free lid
- Adults: large wide-floor terrestrial, 3-4 in dry sand/soil, flat stone or cork hides, gap-free lid
Warnings First
- Escape risk from pure speed, not aggression. Secure the lid before anything else and use fine bonded mesh vents.
- Keep it bone dry. Excess humidity is one of the fastest ways to shorten its life.
- Damp air sits under stones. Vent low on two opposite walls so air moves under and around the rock hides.
- Don't confuse it with Heteropoda maxima, a humid cave spider also called Desert Huntsman Spider. Its care is completely different.
- Mild venom and bites are rare. Watch it, don't handle it.
Simple Care
- Secure the lid before anything else.
- Give flat stones or cork bark for retreats.
- Vent low on two opposite walls in fine bonded mesh.
- Keep it bone dry with a shallow water dish packed with pebbles.
- Use a wide floor. Height doesn't matter much.
- Hold 78-88°F.
- Feed moving live prey and pull leftovers within 24 hours.
Advanced Keeper Notes
Enclosure & Microclimate
- It lives among rocks, not open dunes. Flat rock hides or stacked cork bark work better than a sand mound.
- Vent low on two opposite walls so air moves under and around the rock hides. Lid-only vents leave the gap under each stone still and damp.
- Airflow alone holds it at 25-40%. The dish is the only moisture, so vents never need restricting.
- Use many small openings in fine bonded mesh, not a few big ones, and check the mesh edges as carefully as the gauge.
- Judge by touch and check under the rock hides, not just open substrate. Anywhere that stays cool and damp under a stone is where problems start.
Feeding, Growth & Maintenance
- Crickets or roach nymphs up to about 1 in. Juveniles every 5-7 days, adults every 10-14 days.
- An ambush-and-pursuit hunter, not a web builder. Live prey that moves triggers the feeding response.
- Pull uneaten prey within 24 hours so it doesn't stress a spider holed up under a rock.
Possible Origin / Range
- Likely native range: Stony desert of the Negev, Israel.
- Habitat translation: A rocky, dry desert floor becomes bone-dry sand/soil, flat stone hides with air moving underneath, and high daytime heat.
Advanced Keeper Details
- Stockier and slightly smaller than the White Desert Huntsman (C. aravaensis), and just as fast.
- Telling C. negebensis from C. aravaensis by eye is hard, even for specialists.
- Heteropoda maxima, a Laotian cave spider, also goes by Desert Huntsman Spider. It is unrelated and needs humid cave care.