Costa Rican Zebra Tarantula Care

Species: Aphonopelma seemanni
Common Names: Costa Rican Zebra, Striped-Knee Tarantula

The Costa Rican Zebra Tarantula (Aphonopelma seemanni) is a beautiful and hardy New World terrestrial species found across Costa Rica, Honduras, and Nicaragua. Its striking black body and white-striped legs make it a favorite among collectors and photographers alike.

Unlike many Aphonopelma species that prefer dry habitats, A. seemanni hails from humid tropical forests, making it one of the few Aphonopelma species that appreciates slightly higher humidity.

This species combines beauty, speed, and durability, making it a wonderful choice for keepers ready for a step up from docile terrestrials.

Quick Facts

  • Scientific Name: Aphonopelma seemanni
  • Common Names: Costa Rican Zebra, Striped-Knee Tarantula
  • Origin: Central America (Costa Rica, Honduras, Nicaragua)
  • Adult Size: 12–15 cm (5–6 inches) leg span
  • Lifespan: Females 20–25 years; Males 6–8 years
  • Temperament: Skittish but not aggressive
  • Experience Level: Beginner to Intermediate

Housing & Enclosure

Aphonopelma seemanni is a terrestrial burrower that thrives with deep substrate and plenty of space to dig. This species can be surprisingly active, especially at night, and enjoys rearranging its enclosure.

Recommended enclosure sizes:

  • Juveniles: 20 × 20 × 20 cm
  • Adults: 30 × 30 × 30 cm (12 × 12 × 12 inches) or larger

Setup guidelines:

  • Deep substrate (15–20 cm) for burrowing
  • Cork bark hide or starter burrow
  • Adequate cross ventilation
  • Shallow water dish

This species may create elaborate tunnels and burrows — don’t be surprised if it disappears for weeks at a time during molts or while establishing its home.

Substrate & Decoration

Best substrate mix:

  • 70% coco coir
  • 20% topsoil
  • 10% vermiculite or sand

Keep the bottom layers slightly moist while the top stays dry.

Decorate with:

  • Bark hides or cork rounds
  • Leaf litter and natural decor
  • A few artificial plants to help retain humidity

Temperature & Humidity

  • Temperature: 24–28°C (75–82°F)
  • Humidity: 65–75%

Lightly moisten part of the substrate once every week or two. Avoid over-saturating the entire enclosure — A. seemanni dislikes soggy conditions.

Maintain airflow and a clean water dish at all times.

Feeding & Water

Aphonopelma seemanni is a consistent and eager feeder, though it may go through fasting periods before molts or seasonal temperature changes.

Feeding schedule:

  • Slings: Every 5 days
  • Juveniles: Every 7–10 days
  • Adults: Every 10–14 days

Diet:

  • Crickets, dubia roaches, locusts, mealworms (occasional treat)

This species tends to hunt actively and can be a spectacular sight during feeding time — it may even chase prey around the enclosure.

Behavior & Temperament

While not typically aggressive, A. seemanni is much more skittish than the Arizona Blonde. It’s quick to dash into its burrow when startled and may occasionally threat pose if cornered.

Behavior traits:

  • Very fast and defensive if provoked
  • Prefers to flee rather than fight
  • Rarely flicks hairs, but will if repeatedly disturbed

With consistent, calm husbandry and minimal handling, this species is easy to maintain and rewarding to observe.

Handling

Handling is not recommended for this species. It’s extremely fast and prone to sudden bursts of movement that could lead to injury. Observation through the enclosure is best.

If interaction is necessary (for maintenance or rehousing), use gentle tools like soft brushes or catch cups.

Molting

Like all tarantulas, A. seemanni goes through a molting process as it grows.

Pre-molt signs:

  • Decreased appetite
  • Dull coloration
  • Sealing off burrow

Allow complete privacy during this time and wait at least 10–14 days after molting before offering food again.

Common Health Issues

  • Overly dry substrate: Leads to dehydration or failed molts
  • Poor ventilation: Causes mold or fungal buildup
  • Falls: Avoid high climbing areas due to its heavy body

Overall, A. seemanni is a very hardy and adaptable tarantula when kept in proper conditions.

Breeding (Overview)

Breeding A. seemanni is possible but challenging due to long maturation times.

  • Males mature after 6–8 years; females after 10+
  • Introduce the male during cooler months
  • Females may produce 100–300 spiderlings after 6–8 weeks of incubation

Raising slings can be slow but rewarding — they are hardy and grow steadily under the right care.

Quick Care Checklist

  • Type: Terrestrial burrower
  • Enclosure: 30 × 30 × 30 cm
  • Substrate: Moist coco/soil mix (15–20 cm deep)
  • Temperature: 24–28°C
  • Humidity: 65–75%
  • Feeding: Crickets/roaches every 10–14 days
  • Handling: Avoid

Final Thoughts

The Costa Rican Zebra Tarantula (Aphonopelma seemanni) combines the calm, hardy nature of New World species with a touch of Old World speed and personality.

Its striking black body, white-striped legs, and natural burrowing behavior make it a joy to observe. While not ideal for frequent handling, it’s a fantastic display species for enthusiasts who enjoy watching natural behavior and appreciate a spider with a bit of attitude.

Balanced, beautiful, and resilient — A. seemanni truly earns its place as one of the most iconic Central American tarantulas in the hobby.

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