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Myrmecia Brevinoda Care Guide

Hey everyone! I put together a proper, fact-based care guide for Myrmecia brevinoda — one of Australia’s most iconic (and intense) ants. This species is very rewarding but NOT beginner-friendly.

🌿 Species Overview

Common name: Giant Bull Ant
Location: Australia
Size: Queens ~20–25 mm
Traits: Excellent vision, fast, highly aggressive
Sting: Very painful (can be medically significant)

Unlike most ants, Myrmecia rely heavily on vision and active hunting rather than pheromone trails.

👑 Collecting a Queen

When: Late spring–summer (often after warm rain)
Where: Open woodland, bush edges, sandy soil

Queens are often found walking on the ground searching for nest sites.

⚠️ Do NOT handle directly — use a vial or forceps.

🧪 Founding Stage (IMPORTANT)

Use a standard test tube setup (water + cotton)
Keep dark and stable at 22–26°C

KEY FACT: This species is semi-claustral
→ The queen MUST be fed during founding

Feed every 2–3 days:

Small insects (fruit flies, tiny crickets)
Sugar water or honey

Remove leftovers to prevent mold.

🐣 First Workers (Nanitics)

Timeline: ~6–10 weeks

Care:

Keep disturbance low
Continue protein + sugar feeding
Moderate humidity (not too wet)

🏠 Moving to a Formicarium

Move at around 5–15 workers

Best setups:

Ytong or natural nests
Tub-and-tube setups (recommended early)

Avoid:

Excess humidity
Complex acrylic nests

Myrmecia prefer simple, spacious setups.

🍗 Feeding a Growing Colony

Protein:

Crickets
Mealworms
Roaches
Flies

Carbs:

Sugar water
Honey water

Schedule:

Small colonies: every 2–3 days
Larger colonies: daily or every second day

They respond best to live or freshly killed prey.

🌡️ Conditions

Temperature: 22–28°C
Humidity: Moderate (with gradient)
Light: Tolerant, but prefer dark nests

⚠️ Safety

Always use feeding tools
Use PTFE/fluon barriers
Secure all enclosures

Their sting is serious — treat with respect.

🏗️ Mature Colony Care

Colonies stay relatively small (dozens to low hundreds)
Increased food demand
Larger outworld needed

Maintenance:

Clean regularly
Remove waste/prey remains
Watch for mold

🧠 Behaviour Notes

Strong eyesight
Minimal pheromone trails
Solitary hunting behaviour
Highly reactive to movement

❌ Common Mistakes

Not feeding the founding queen
Too much humidity
Disturbing early stages
Poor escape prevention
Handling without precautions

✅ Final Thoughts

Myrmecia brevinoda are one of the most fascinating ants you can keep, but they require:

✔ Regular feeding
✔ Careful setup
✔ Respect for their aggression

If done right, they’re incredibly rewarding.