Scientific illustration of Odontomachus cephalotes ant - showing key identification features including head, thorax, and gaster.

Odontomachus cephalotes

Monogynous Non-Parasitic Queen No Gamergate
Sci. Name
Odontomachus cephalotes
Tribe
Ponerini
Subfamily
Ponerinae
Author
Smith, 1863
Distribution
Found in 3 countries
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Introduction

Odontomachus cephalotes is a medium-sized trap-jaw ant found in northern Australia, New Guinea, and Indonesia . It inhabits tropical forests, often nesting in soil or rotting wood . This species is known for its powerful trap-jaw mechanism, which can snap shut at speeds up to 48 m/s to capture prey .

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Status by country, from Kass et al. 2022 & Wong et al. 2023

Native Invasive Introduced (indoor) Intercepted Unknown
Data Sources
Year Range 2000 - 2026

Quick Summary

  • Difficulty: Medium
  • Origin & Habitat: Northern Australia, New Guinea, and Indonesia, in tropical forests [4].
  • Colony Type: Based on Odontomachus genus patterns, likely monogyne, but unconfirmed from species-specific literature.
  • Size & Growth:
    • Queen: Size data unavailable, inferred from Odontomachus genus (~10-12 mm)
    • Worker: Size data unavailable, inferred from Odontomachus genus (~5-10 mm)
    • Colony: Up to several hundred workers, estimated based on related species
    • Growth: Moderate
    • Development: Estimated 8-12 weeks at optimal temperature, based on typical Ponerinae development (Development time may vary with temperature.)
  • Antkeeping:
    • Temperature: Keep at 24-28°C [4].
    • Humidity: High humidity required, keep substrate consistently moist but not waterlogged [4].
    • Diapause: No true hibernation required, species is tropical [4].
    • Nesting: Y-tong or plaster nests work well, provide dark, humid chambers [4].
  • Behavior: These ants are active predators with a powerful sting for defense (from subfamily Ponerinae). They use their trap-jaw mechanism for hunting [5]. Moderately aggressive when threatened.
  • Common Issues: slow colony growth compared to many species., high humidity requirements can lead to mold if ventilation is poor., predatory diet requires live food., trap-jaw mechanism can cause injury if mishandled., worker polymorphism may slow initial colony growth.

Housing and Nest Setup

Use Y-tong or plaster nests that maintain high humidity. Provide dark, enclosed chambers. Transfer from test tube setup once colony has 10-15 workers. Choose nest materials that retain moisture without mold issues [4].

Feeding and Diet

As predators, these ants need live prey such as small crickets, fruit flies, or mealworms. Offer protein prey 2-3 times per week and occasionally provide sugar water or honey for energy [4].

Temperature and Heating

Maintain temperatures between 24-28°C using a heating cable or heat mat on one side of the nest to create a gradient [4].

Humidity Management

Keep nest substrate consistently moist but not waterlogged. Use a water reservoir or mist the outworld occasionally, with good ventilation to prevent mold [4].

Behavior and Defense

These ants use their trap-jaw mechanism for hunting prey at high speeds [5]. For defense, they have a sting typical of Ponerinae ants. Handle with care to avoid injury from jaw snaps.

Colony Development

Colonies grow moderately, with worker polymorphism noted in the species [6]. Expect slow development from egg to worker, typical for Ponerinae.

Frequently Asked Questions

How long does it take for Odontomachus cephalotes to produce first workers?

Expect 8-12 weeks from egg to first worker at optimal temperature, based on typical Ponerinae development [4].

Do Odontomachus cephalotes ants sting?

Yes, they have a sting as part of their defense mechanism, typical for Ponerinae ants. They also use their trap-jaw mandibles for hunting [5].

What do I feed my Odontomachus cephalotes colony?

Feed live prey like small crickets or fruit flies, and occasionally provide sugar water [4].

Are Odontomachus cephalotes good for beginners?

They are intermediate difficulty due to humidity and dietary needs, so better for keepers with some experience [4].

Do I need to hibernate Odontomachus cephalotes?

No true hibernation is required, as they are tropical ants [4].

How big do Odontomachus cephalotes colonies get?

Colonies can reach up to several hundred workers over time, based on related species [4].

Can I keep multiple queens together?

This species is likely monogyne, so only one queen per colony is recommended to avoid fighting [4].

When should I move my colony to a formicarium?

Move from a test tube setup once the colony has 10-15 workers [4].

Why is my Odontomachus cephalotes colony growing slowly?

This is normal for Ponerine ants, ensure proper temperature, humidity, and diet [4].

Do Odontomachus cephalotes need special escape prevention?

Yes, ensure secure connections between nest and outworld, as they are active hunters [4].

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References

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This caresheet is licensed under CC BY-SA 4.0 .