Haitian Brown (Phormictopus Cancerides)

Massive and moody, Phormictopus cancerides is one of the largest tarantulas from the Caribbean region. With a hefty build, iridescent sheen, and explosive feeding style, it’s a showstopper — but not for the faint of heart. Great for experienced keepers who want a serious presence in their collection.

Quick Facts

Common Name: Haitian Brown / Hispaniolan Giant

Scientific Name: Phormictopus cancerides

Origin: Hispaniola (Haiti & Dominican Republic)

Size: 7–8+ inches (18–20+ cm) leg span

Lifespan:

• Females: 20+ years
• Males: 3–5 years

Temperament: Defensive, fast, and not afraid to throw threats — handle with your eyes only

Coloration

Earthy brown base with a subtle purple or bronze iridescence

Young specimens may appear dull but get a glossy shine with age

Thick-legged and heavily built — a true tank of a tarantula

Some regional variations show hints of green or violet tones

Housing & Care

Enclosure Type: Terrestrial — bulldozer behavior likely

Substrate: 5–6 inches of slightly moist substrate (holds tunnels well)

Humidity: 70–80% — keep well-hydrated, especially for slings

Temperature: 75–82°F (24–28°C)

Decor:

• Deep substrate with a sturdy hide (or let it bulldoze its own)
• Moss, bark, and a large water dish
• Secure lid — this species is powerful and can climb if stressed

Will rearrange decor, web over surfaces, and dig extensively if conditions are right.

Feeding

Diet: Crickets, roaches, superworms — can handle large prey

Feeding Schedule:

• Slings: 2–3x/week
• Juveniles: Weekly
• Adults: Every 7–10 days

Extremely aggressive feeders — expect a dramatic takedown

Why It's a Monster Keeper’s Favorite

Huge size and mass — one of the biggest NW terrestrials

Shimmering coloration under natural light

Very active and interactive with its environment

Incredible feeding response

• Impressive threat display if provoked — full fang flex

Notes

Not suitable for handling — fast and defensive when cornered

Will flick urticating hairs if annoyed

Needs space and proper humidity to thrive

Occasionally underestimated — it will remind you who’s boss