Brazilian Blue(Lasiocyano Sazimai)

The Brazilian Blue (Lasiocyano sazimai) — a true gem of a tarantula, and one of the most eye-catching species in the hobby. This New World beauty is all about that metallic sapphire shimmer, a mix of elegance and mystery that makes her a centerpiece in any serious collection.

Quick Facts

Common Name: Brazilian Blue

Scientific Name: Lasiocyano sazimai (formerly Pterinopelma sazimai)

Origin: Chapada Diamantina, Bahia state, Brazil

Size: 5–6 inches (12–15 cm) leg span

Lifespan:

• Females: 12–15 years
• Males: 3–4 years

Temperament: Nervous and skittish — not aggressive, but quick to retreat

Coloration:

• Deep blue metallic legs and carapace
• Black abdomen with reddish hairs
• Under the right light? Absolutely iridescent — unreal beauty

Housing

Enclosure Type: Terrestrial

Substrate: 4–5 inches of slightly moist coco fiber/topsoil mix

Humidity: 65–75% (allow one side of the enclosure to stay a bit drier)

Temperature: 72–78°F (22–25°C)

Decor:

• Cork bark hide or half-log
• Water dish (clean, always full)
• Some leaf litter or moss for natural feel

Burrowing behavior: They might dig a shallow tunnel but aren’t heavy fossorial

 These spiders appreciate a secure hide — it’ll bring them out more often when they feel safe.

Feeding

Diet: Crickets, roaches, mealworms, superworms

Feeding Frequency:

• Slings: 2–3x/week
• Juveniles: Weekly
• Adults: Every 10–14 days

Feeding response: Moderate — not overly aggressive, but they'll come out and take prey with confidence

Why They’re a Crown Jewel

Absolutely breathtaking coloration — one of the few species that is truly blue

Docile and calm, especially for intermediate keepers

Makes an amazing display spider, especially in natural light

Rare and endemic to a specific mountainous region in Brazil — adds exotic appeal

Not super common in the hobby, but still manageable for a non-beginner

 Things to Know

Not the fastest grower — moderate growth rate, patience pays off

Can be shy — may spend time in or near their hide

Like many New World species, they can flick urticating hairs if stressed

Sensitive to poor humidity or airflow — balance is key to avoid mold or dehydration issues