Phiddipus Regius "Sierra de Bahoruco" - Jumping Spider

Sierra de Bahoruco Locale: Regal Jumping Spider (Phidippus regius)

Stage: i4 (4th Instar) | Origin: Captive Bred

The Sierra Advantage

The "Red Phase" Potential: While Florida locales lean toward orange, the Sierra is famous for deep "brick red" and rich mahogany tones.

High-Contrast Masks: Mature females often develop a crisp, cream-coloured "mask" across the face, creating a stunning contrast against their darker base colours.

Vivid Chelicerae: This locale is known for "electric" mouthparts—expect deep violets, teals, and emerald greens that pop against their rust-coloured coats.

Island Athleticism: Being a mountain-dwelling island form, the Sierra is a sleek, athletic hunter. They are incredibly bold and active, making them one of the most rewarding locales to observe.

Specifics for i4 Slings

Size: Currently approx. 5–7mm (roughly the size of a garden pea).

Current Diet: Hunting Drosophila hydei (Large Fruit Flies) with high accuracy.

Appearance: At the i4 stage, these slings are in their "juvenile tuxedo"—sleek black with white abdominal markings. Their signature red tones and facial masks will begin to emerge around the i6/i7 molts.

Sexing: Sold as unsexed. True to the species, their gender-specific traits will become clear as they mature.

UK Care Requirements

Humidity: 70% – 80%. To mimic their Caribbean island home, provide a fine misting on one side of the enclosure every 1–2 days.

Temperature: Thrives between 24°C – 28°C. In the UK, a thermostat-controlled heat mat is highly recommended to keep their metabolism and activity levels high. Read our blog post here

Lighting: Bright, indirect light is essential for their visual hunting style. A 12-hour light cycle is ideal.

The Growth Journey: Transitioning Feeders

Our i4 Sierra slings are established on fruit flies, but as they grow into athletic juveniles, their appetite will graduate.

Future Diet: We recommend transitioning to Green Bottle flies at the i6 or i7 stage. These provide excellent enrichment and the perfect nutritional profile for a growing Sierra.

Expert Guide: For a full breakdown on moving your spider to larger prey, read our feeding and transition blog post here.

Important Shipping Update

​We have made the decision to dispatch all live spiders exclusively via Royal Mail Special Delivery (Guaranteed by 1pm).

​The welfare of our spiders is our absolute priority, and we have implemented this policy for the following reasons:

• ​Reliability: Unfortunately, services such as Tracked 24 have recently seen an increase in delayed or lost parcels. When it comes to a living creature, we simply cannot take that risk.
• ​Priority Handling: Special Delivery is a premium service that bypasses the standard post. This means your spider spends as little time as possible in the mail system and isn't left sitting in a delivery office during a backlog.
• ​Reduced Stress: A faster journey means less stress for the spider, ensuring they arrive healthy, hydrated, and ready for their new home.

​Please Note: To avoid any risk of your spider being held in a sorting office over the weekend, we only post orders from Monday to Thursday.

📷 About Our Photos: Variation & Potential

Please Note: The images provided include photos of our actual i4 spiderlings currently in stock.

However, because these are unsexed juveniles, they have not yet developed their adult colours. Like all Phiddipus regius, they undergo a spectacular transformation as they grow. While the Sierra lineage is known for its red potential and facial masks, every spider is a unique individual. The final adult colouration is a result of genetic diversity, making the journey of watching your sling grow an exciting "unboxing" of its true traits!

Note on Sexing:

This spider is sold as unsexed. If you have a preference for a male or female, please message us! We can’t guarantee it, but we’ll always do our best to find your perfect match.