Mascara Giant Birdeater (Pamphobeteus sp. “Mascara”)

One of the many jaw-dropping giants in the Pamphobeteus genus, the Mascara Giant Birdeater gets its name from the bold, dark eye-like markings on its carapace and the dramatic, contrasting “makeup” pattern around its eyes and legs. Like its relatives, it’s a large, fast-growing, and heavy-bodied species that makes a striking display animal for advanced keepers.

Quick Facts

Common Name: Mascara Giant Birdeater

Scientific Name: Pamphobeteus sp. “Mascara”

Origin: Ecuador / Colombia (exact distribution not fully confirmed)

Size: 8–9 inches (20–23 cm) leg span

Lifespan:

• Females: 15–18 years
• Males: ~4–5 years

Temperament: Skittish, nervous, and defensive at times; not for handling

Coloration

Carapace with bold dark markings resembling “mascara” or heavy eyeliner

Deep brown to purplish body with iridescent highlights

Reddish to copper hairs on abdomen and legs

Females often bulkier and darker, while males mature into flashier colors

Housing & Care

Enclosure Type: Terrestrial — spacious with deep substrate

Substrate: 5–7 inches of moist substrate (coco fiber/topsoil mix)

Humidity: 70–80% (keep one side moist, one side drier)

Temperature: 74–80°F (23–27°C)

Decor:

• Large cork hide or log for shelter
• Leaf litter and moss for naturalistic feel
• Wide water dish — they are thirsty spiders

Loves to bulldoze and rearrange its space — a typical Pamphobeteus!

Feeding

Diet: Crickets, dubia roaches, locusts, superworms; adults may take small vertebrate prey on rare occasions

Feeding Schedule:

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

Extremely aggressive feeders — impressive takedowns

🌟Why Keep One?

Massive size and fast growth rate

Unique “mascara” carapace pattern — striking and different from other Pamphobeteus

Bold feeding behavior — very entertaining to watch

Hardy and adaptable compared to more delicate giants

Notes

Can be skittish and defensive — not a handling species

Kicks very irritating urticating hairs readily

Needs careful humidity management to prevent issues with molting

Requires a large enclosure once mature

The Mascara Giant Birdeater is a true showstopper — combining the power and size of a classic Pamphobeteus with a unique, dramatic look that sets it apart from the rest. A serious spider for serious keepers.