Care guide
White Desert Huntsman Spider
Cerbalus aravaensis
A pale, sand-camouflaged huntsman from the dune edges of the Israel-Jordan border that digs its own trapdoor-covered den. Reclusive and not defensive by nature, but among the fastest spiders you will ever try to catch if it gets loose. Adults reach roughly 5.5 inches legspan.
Cerbalus aravaensis
White Desert Huntsman Spider: Advanced Care Guide
Keeper Snapshot: A pale, sand-camouflaged huntsman from the dune edges of the Israel-Jordan border that digs its own trapdoor-covered den. Reclusive and not defensive by nature, but among the fastest spiders you will ever try to catch if it gets loose. Adults reach roughly 5.5 inches legspan.
Group: Spiders & Other InvertsDifficulty: Spice 3: IntermediateSetup: Dry sand-dune burrower, wide floor spaceHandling: Not recommended (extreme flight risk, not a bite 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 | Low (25-40%), generously ventilated; bone-dry sand, shallow dish with pebbles |
| Setup Type | Dry sand-dune burrower, wide floor space |
| Substrate | Fine sand, 3-4 in deep minimum for burrowing, kept bone dry, shallow water dish |
| Feeding | Crickets/dubia up to 1 in |
| Care Difficulty | Spice 3: Intermediate |
| Handling | Not recommended (extreme flight risk, not a bite 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
- Baby Buddy for juveniles
- Large wide-floor terrestrial for adults
Warnings First
- Escape risk is the primary concern, not venom: this species is extremely fast and exploits tiny gaps
- Venom not considered medically significant to humans; bites are rare and this species is reclusive rather than defensive
- Requires bone-dry sand substrate; excess humidity causes rapid health decline
- Builds a trap-door style silk-and-sand burrow cover. Avoid disturbing an established burrow
- A silk-and-sand trapdoor seals the den almost completely. Vents low on two opposite walls keep the surrounding sand aired, since the den itself gets no airflow of its own.
Simple Care
- Prioritize a secure, gap-free lid over decor.
- Vents low on two opposite walls in fine bonded mesh: generous airflow, no gap a fast sprinter can exploit.
- Keep substrate dry; use a shallow water dish rather than misting.
- Pack the dish with pebbles or grit so the waterline sits below the rim.
- Give more floor space than height: a ground-dwelling sprinter, not a climber.
Advanced Keeper Notes
Enclosure & Microclimate
- This species needs floor space more than height: wide and shallow beats tall and narrow. Fine dry sand at 3-4 in lets it establish its own den; once it does, leave the burrow mouth alone during routine maintenance.
- Ventilation should be generous since this is a genuinely arid-adapted species: any humidity buildup runs contrary to its native sand-dune habitat.
- Place that generous ventilation low on two opposite walls so air crosses the sand rather than passing over the lid of a deliberately wide, shallow enclosure. The trapdoor makes this worth doing properly: a silk-and-sand cover over a den is close to a seal, so the den holds whatever air is around it and you cannot correct conditions in there without disturbing a burrow you have been told to leave alone.
- On a true dune species there is no ventilation ceiling. Airflow holds ambient at 25 to 40% by itself, so the dish is the only moisture input and there is never a reason to restrict vents.
- Handle the escape risk with many small openings in fine bonded mesh instead of a few large ones. Same airflow, nothing a fast sprinter can work through, and the mesh edges matter as much as the gauge.
- Judge by hand rather than by gauge. Sand should read dry throughout, and any spill around the dish should be gone within a day.
- Keep the dish shallow and packed with pebbles or coarse grit so the waterline sits below the rim. Since the guidance is a dish rather than misting, the dish is the sole water source and needs to be safe for a small or newly-imported animal to use.
Feeding, Growth & Maintenance
- Feeding: crickets or roach nymphs up to about 1 inch. Juveniles every 5-7 days, adults every 10-14 days. This species hunts opportunistically and has been documented taking small geckos in the wild, so don't be surprised by an aggressive prey response even though it's reclusive toward keepers.
- Maintenance: remove uneaten prey within a day. Stray insects can stress a burrowed spider that isn't ready to hunt.
Possible Origin / Range
- Likely native range: Sand dunes of the southern Arava Valley, Israel and Jordan.
- Habitat translation: Hot, dry, wind-scoured sand dunes: replicate with dry fine sand, high heat, and minimal humidity.
Advanced Keeper Details
- Species-level ID in this genus is genuinely contested in the trade (aravaensis vs. negebensis vs. undescribed Egyptian populations). Avoid over-promising a definitive scientific name.
- Wild-collected from a range with real conservation pressure (dune habitat loss); captive-bred stock essentially doesn't exist yet.
- Sources: the full Big Z APA 7 reference list lives at References.
Cerbalus aravaensis
White Desert Huntsman Spider
Big Z's Quick Verdict: A pale, sand-camouflaged huntsman from the dune edges of the Israel-Jordan border that digs its own trapdoor-covered den. Reclusive and not defensive by nature, but among the fastest spiders you will ever try to catch if it gets loose. Adults reach roughly 5.5 inches legspan.
Group: Spiders & Other InvertsDifficulty: Spice 3: IntermediateSetup: Dry sand-dune burrower, wide floor spaceHandling: Not recommended (extreme flight risk, not a bite 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 Care Snapshot
| Temp | 78-88°F |
|---|---|
| Humidity | Low (25-40%), generously ventilated; bone-dry sand, shallow dish with pebbles |
| Setup | Dry sand-dune burrower, wide floor space |
| Substrate | Fine sand, 3-4 in deep minimum for burrowing, kept bone dry, shallow water dish |
| Feeding | Crickets/dubia up to 1 in |
| Handling | Not recommended (extreme flight risk, not a bite 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%+
Recommended Big Z's Setup
- Baby Buddy for young juveniles only
- Large wide-floor terrestrial with a tight, clamped lid for adults: Burrow Buddy is undersized on floor area for this species, and it is a notorious escape artist
Critical Notes
- Escape risk is the primary concern, not venom: this species is extremely fast and exploits tiny gaps
- Venom not considered medically significant to humans; bites are rare and this species is reclusive rather than defensive
- Requires bone-dry sand substrate; excess humidity causes rapid health decline
- Builds a trap-door style silk-and-sand burrow cover. Avoid disturbing an established burrow
- A silk-and-sand trapdoor seals the den almost completely. Vents low on two opposite walls keep the surrounding sand aired, since the den itself gets no airflow of its own.
Care Basics
- Prioritize a secure, gap-free lid over decor.
- Vents low on two opposite walls in fine bonded mesh: generous airflow, no gap a fast sprinter can exploit.
- Keep substrate dry; use a shallow water dish rather than misting.
- Pack the dish with pebbles or grit so the waterline sits below the rim.
- Give more floor space than height: a ground-dwelling sprinter, not a climber.
Feeding, Growth & Maintenance
- Feeding: crickets or roach nymphs up to about 1 inch. Juveniles every 5-7 days, adults every 10-14 days. This species hunts opportunistically and has been documented taking small geckos in the wild, so don't be surprised by an aggressive prey response even though it's reclusive toward keepers.
- Maintenance: remove uneaten prey within a day. Stray insects can stress a burrowed spider that isn't ready to hunt.
Current Big Z's catalog: Yes
Cerbalus aravaensis
White Desert Huntsman Spider: Advanced Care Guide
Keeper Snapshot: A pale, sand-camouflaged huntsman from the dune edges of the Israel-Jordan border that digs its own trapdoor-covered den. Reclusive and not defensive by nature, but among the fastest spiders you will ever try to catch if it gets loose. Adults reach roughly 5.5 inches legspan.
Group: Spiders & Other InvertsDifficulty: Spice 3: IntermediateSetup: Dry sand-dune burrower, wide floor spaceHandling: Not recommended (extreme flight risk, not a bite 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 | Low (25-40%), generously ventilated; bone-dry sand, shallow dish with pebbles |
| Setup Type | Dry sand-dune burrower, wide floor space |
| Substrate | Fine sand, 3-4 in deep minimum for burrowing, kept bone dry, shallow water dish |
| Feeding | Crickets/dubia up to 1 in |
| Care Difficulty | Spice 3: Intermediate |
| Handling | Not recommended (extreme flight risk, not a bite 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
- Baby Buddy for juveniles
- Large wide-floor terrestrial for adults
Warnings First
- Escape risk is the primary concern, not venom: this species is extremely fast and exploits tiny gaps
- Venom not considered medically significant to humans; bites are rare and this species is reclusive rather than defensive
- Requires bone-dry sand substrate; excess humidity causes rapid health decline
- Builds a trap-door style silk-and-sand burrow cover. Avoid disturbing an established burrow
- A silk-and-sand trapdoor seals the den almost completely. Vents low on two opposite walls keep the surrounding sand aired, since the den itself gets no airflow of its own.
Simple Care
- Prioritize a secure, gap-free lid over decor.
- Vents low on two opposite walls in fine bonded mesh: generous airflow, no gap a fast sprinter can exploit.
- Keep substrate dry; use a shallow water dish rather than misting.
- Pack the dish with pebbles or grit so the waterline sits below the rim.
- Give more floor space than height: a ground-dwelling sprinter, not a climber.
Advanced Keeper Notes
Enclosure & Microclimate
- This species needs floor space more than height: wide and shallow beats tall and narrow. Fine dry sand at 3-4 in lets it establish its own den; once it does, leave the burrow mouth alone during routine maintenance.
- Ventilation should be generous since this is a genuinely arid-adapted species: any humidity buildup runs contrary to its native sand-dune habitat.
- Place that generous ventilation low on two opposite walls so air crosses the sand rather than passing over the lid of a deliberately wide, shallow enclosure. The trapdoor makes this worth doing properly: a silk-and-sand cover over a den is close to a seal, so the den holds whatever air is around it and you cannot correct conditions in there without disturbing a burrow you have been told to leave alone.
- On a true dune species there is no ventilation ceiling. Airflow holds ambient at 25 to 40% by itself, so the dish is the only moisture input and there is never a reason to restrict vents.
- Handle the escape risk with many small openings in fine bonded mesh instead of a few large ones. Same airflow, nothing a fast sprinter can work through, and the mesh edges matter as much as the gauge.
- Judge by hand rather than by gauge. Sand should read dry throughout, and any spill around the dish should be gone within a day.
- Keep the dish shallow and packed with pebbles or coarse grit so the waterline sits below the rim. Since the guidance is a dish rather than misting, the dish is the sole water source and needs to be safe for a small or newly-imported animal to use.
Feeding, Growth & Maintenance
- Feeding: crickets or roach nymphs up to about 1 inch. Juveniles every 5-7 days, adults every 10-14 days. This species hunts opportunistically and has been documented taking small geckos in the wild, so don't be surprised by an aggressive prey response even though it's reclusive toward keepers.
- Maintenance: remove uneaten prey within a day. Stray insects can stress a burrowed spider that isn't ready to hunt.
Possible Origin / Range
- Likely native range: Sand dunes of the southern Arava Valley, Israel and Jordan.
- Habitat translation: Hot, dry, wind-scoured sand dunes: replicate with dry fine sand, high heat, and minimal humidity.
Advanced Keeper Details
- Species-level ID in this genus is genuinely contested in the trade (aravaensis vs. negebensis vs. undescribed Egyptian populations). Avoid over-promising a definitive scientific name.
- Wild-collected from a range with real conservation pressure (dune habitat loss); captive-bred stock essentially doesn't exist yet.
- Sources: the full Big Z APA 7 reference list lives at References.