Odontomachus caelatus

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Amazon Basin and Guyanan forests, including Brazil, Ecuador, Peru, Guyana, French Guiana, and Colombia. They live in wet tropical rainforest at elevations of 170-650 m, often in leaf litter or under rotten wood ^[1][2].
• Colony Type: Likely monogyne (single queen) based on typical Odontomachus patterns, but unconfirmed for this species.
• Size & Growth:
  • Queen: 14.8-15.3 mm ^[1]
  • Worker: 11.1-14.6 mm ^[1]
  • Colony: Size data unavailable
  • Growth: Moderate
  • Development: Unknown, no specific data for this species (Development is temperature-dependent, warmer conditions may speed up growth.)
• Antkeeping:
  • Temperature: Keep warm, roughly 24-28°C, based on tropical habitat. Provide a gradient for self-regulation.
  • Humidity: Keep nest substrate consistently moist but not waterlogged, with a humidity gradient to mimic rainforest conditions.
  • Diapause: No, as a tropical species, they do not require hibernation.
  • Nesting: Provide a naturalistic setup with rotten wood, leaf litter, and moist soil, as they nest in these materials in the wild ^[1][2].
• Behavior: Aggressive predators with powerful stings and trap-jaw mandibles for hunting. Workers are active foragers on the forest floor. Escape risk is moderate due to their large size, use barriers like fluon on outworld rims.
• Common Issues: colonies may fail if humidity drops too low, these forest ants are sensitive to drying out, their powerful sting makes them unsuitable for handling or households with pets, founding phase can be slow if conditions are not optimal, wild-caught colonies may have parasites that cause mortality in captivity, live prey is essential, colonies can fail if only given dry food

Housing and Setup

Recreate their natural forest-floor habitat with a mix of soil, sand, and rotting wood pieces. Keep the nest area dark and humid, with a moisture gradient. Use a Y-tong or plaster nest with a water reservoir to maintain humidity. Provide a shallow water dish and sugar water source. Ensure enough space for foraging, with at least 10x10 cm floor area for growing colonies ^[1][2].

Feeding and Diet

These ants are obligate predators and need live prey such as fruit flies, small crickets, or mealworms. Offer protein 2-3 times per week and provide constant sugar water. Remove uneaten prey after 24 hours to prevent mold. ^[2]

Temperature and Humidity Control

Maintain temperatures around 24-28°C using a heating cable on top of the nest. Monitor with a thermometer at nest level. Humidity should be kept high with moist substrate, mist regularly or use a moisture reservoir in plaster nests.

Behavior and Handling

Workers are aggressive and will sting if threatened. Observe from a distance and avoid handling. They forage actively, especially at night, and can climb smooth surfaces, so use escape prevention like fluon. ^[2]

Colony Growth and Development

Founding queens may lay eggs within weeks, but development timeline is unconfirmed. First workers are smaller and help expand the colony. Growth is moderate, with colonies potentially reaching several hundred workers over years.

Frequently Asked Questions

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References