The Complete Guide to Keeping Black Emilia Tarantulas

The Black Emilia Tarantula (Tliltocatl vagans, formerly Brachypelma vagans) is a hardy, terrestrial New World species known for its deep black colouration, bold feeding response, and relatively simple care requirements. Native to Central America, particularly Mexico and Belize, this species inhabits dry forests and scrublands where it spends much of its time in burrows.

Popular with both intermediate keepers and confident beginners, the Black Emilia is valued for its resilience, striking appearance, and straightforward husbandry.

What Is a Black Emilia Tarantula?

The Black Emilia is a medium-to-large terrestrial tarantula characterised by its velvety black body and robust build. While not as brightly coloured as some related species, its uniform dark appearance gives it a distinctive and imposing look.

They are:

• Medium to large: Adults reach 12–15 cm leg span

• Terrestrial: Ground-dwelling with burrowing tendencies

• Hardy: Tolerant of a range of conditions

• Defensive (mild): More likely to flick hairs than bite

As a New World species, they possess urticating hairs used as a primary defence.

Enclosure Requirements

Tank Size

Black Emilias require more floor space than height.

• Spiderlings: Small vials or tubs

• Juveniles: 15–20 cm enclosures

• Adults: Minimum 30 x 30 x 30 cm enclosure

A good rule is to provide at least 2–3 times the spider’s leg span in floor space.

Enclosure Type

A secure terrestrial enclosure with good ventilation is essential.

Suitable options include:

• Glass terrariums

• Plastic tubs with cross ventilation

• Acrylic enclosures

Ensure the lid is secure, as tarantulas can climb and push weak lids.

Substrate

Substrate depth is important for comfort and potential burrowing.

Recommended substrates:

• Coco fibre (coir)

• Topsoil (chemical-free)

• Soil/sand mixes

Provide at least 8–12 cm of substrate for juveniles and adults.

Keep the substrate mostly dry with a slightly moist corner.

Temperature and Humidity

The Black Emilia prefers relatively dry conditions compared to tropical species.

• Temperature: 22–26°C

• Humidity: 60–70%

Humidity can be maintained by lightly moistening part of the substrate and keeping a water dish available.

Good ventilation is key to preventing mould and stagnant air.

Lighting

No special lighting is required.

• Ambient room light is sufficient

• Avoid direct sunlight

Tarantulas are nocturnal and prefer dim environments.

Decor and Hiding Spots

Providing a hide is important, even if the spider does not always use it.

Include:

• Cork bark hide

• Half logs or artificial caves

• Leaf litter for cover

Avoid tall decorations, as falls can be dangerous for heavy-bodied tarantulas.

Diet and Feeding

Black Emilias are enthusiastic feeders.

Suitable Prey:

• Crickets

• Locusts

• Dubia roaches

• Mealworms (occasionally)

Feeding Schedule:

• Spiderlings: Every 3–5 days

• Juveniles: Once or twice weekly

• Adults: Every 7–10 days

Prey should be no larger than the spider’s abdomen.

Always remove uneaten prey after 24 hours, particularly during premoult.

Fresh water should always be available in a shallow dish.

Behaviour and Temperament

The Black Emilia is generally calm but can be defensive.

Typical behaviour:

• Hair flicking when disturbed

• Occasional threat postures

• Moderate activity, especially at night

They are not typically aggressive but should not be handled unnecessarily.

Handling risks:

• Urticating hair irritation

• Potential bites

• Risk of injury from falls

Observation is the safest and most rewarding way to enjoy this species.

Moulting

Moulting is essential for growth.

Signs of premoult:

• Refusal to eat

• Darkening abdomen

• Reduced activity

During moulting:

• The spider may lie on its back

• Do not disturb

After moulting:

• Wait 7–10 days before feeding

• Fangs must fully harden

Stable conditions and access to water support successful moults.

Breeding

Breeding Tliltocatl vagans is achievable with experience.

• Males mature faster and live shorter lives

• Females produce egg sacs with numerous spiderlings

• Spiderlings are hardy and grow steadily

As with all tarantulas, proper research is essential before attempting breeding.

Common Health Issues

Black Emilias are hardy but can still encounter issues.

Watch for:

• Dehydration

• Lethargy

• Failed moults

• Mite infestations

Most problems are linked to incorrect humidity, poor ventilation, or lack of water.

Lifespan and General Care

• Females: 15–20 years

• Males: 3–5 years

• Growth rate: Moderate

Routine care includes maintaining clean conditions, providing fresh water, and feeding appropriately.

Tank Mates

Tarantulas should always be housed alone.

• Cannibalistic behaviour is common

• Cohabitation leads to stress or injury

This species is strictly solitary.

Conclusion

The Black Emilia Tarantula is a robust, attractive, and relatively easy-to-care-for species that suits keepers looking for a hardy terrestrial tarantula with a bold presence.

While not the most colourful species, its deep black appearance and reliable feeding response make it a standout addition to any collection. With proper care, respect, and stable conditions, Tliltocatl vagans can thrive for many years and provide a rewarding keeping experience.