Temnothorax morea

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Eastern Mediterranean, southern and western Greece, Croatia along the Adriatic coast, and western Turkey. They live in dry habitats from 110 to 2100 meters elevation, including deciduous oak forests, stream valleys with Platanus trees, phrygana (Mediterranean shrubland) with oak shrubs, and occasionally coniferous forests, olive orchards, and pastures ^[1][3]. Nests are found under moss or in crevices in limestone rocks ^[1][4]. They prefer more arid and sunny areas than the closely related Temnothorax strymonensis ^[1].
• Colony Type: Unknown, likely single-queen colonies (monogyne) based on typical Temnothorax social structure. No documented polygyny or ergatoid replacement reproductives for this species.
• Size & Growth:
  • Queen: Unknown, inferred from Temnothorax genus (~4-5 mm)
  • Worker: Unknown, inferred from Temnothorax genus (~2-3 mm)
  • Colony: Unknown, typical Temnothorax colonies are small, likely up to a few hundred workers
  • Growth: Slow to moderate
  • Development: 6-10 weeks (estimated based on typical Temnothorax development) (Development depends heavily on temperature, warmer conditions (22-26°C) speed it up, cooler temperatures slow it down significantly. First workers (nanitics) will be smaller than mature workers.)
• Antkeeping:
  • Temperature: Warm conditions, roughly 20-28°C. Provide a temperature gradient so the ants can choose their preferred spot. They come from dry, sunny Mediterranean habitats and can handle brief heat, but avoid prolonged temperatures above 30°C or below 15°C ^[1].
  • Humidity: Low to moderate, they prefer dry conditions. Keep the nest substrate mostly dry with one small moist area. Constant wetness can lead to mold issues, as they naturally nest in arid, sunny rock crevices ^[1][3].
  • Diapause: Likely required, as a temperate/Mediterranean species, they benefit from a winter rest period. Reduce temperature to 10-15°C for 8-12 weeks (roughly November-February). Stop feeding during this time and keep the nest slightly moist but not wet.
  • Nesting: Y-tong (AAC) nests, plaster nests, or naturalistic setups with flat stones over dry substrate work well. They prefer tight, dark chambers mimicking the rock crevices and spaces under moss they use in nature ^[1][4]. Avoid large, open spaces, small chambers reduce stress.
• Behavior: Generally peaceful and non-aggressive. Workers are active foragers that search for small prey and honeydew. They have a modified stinger for smearing venom (smear defense) rather than piercing, so they are not a stinging threat. Their tiny size (2-3 mm) means they can slip through very small gaps, excellent escape prevention is essential. They will typically flee rather than fight.
• Common Issues: escape prevention is critical, their tiny size allows them through standard test tube cotton and lid gaps, use fine mesh (at least 0.5mm) and tight-fitting barriers., colonies grow slowly initially, patience is needed, especially during the founding stage., mold problems, they come from dry habitats, so keep the nest dry with only a small humid area, remove uneaten food promptly., overheating, their small body mass makes them sensitive to extreme heat, avoid direct sunlight on the nest., hard to spot, their small size and tendency to hide can make it difficult to monitor colony health, use a magnifying glass or macro lens.

Housing and Nest Setup

Temnothorax morea does well in Y-tong (AAC) nests or plaster formicaria that provide tight, dark chambers, similar to the rock crevices they naturally use ^[1][4]. The chambers should be small, oversized spaces stress them. A test tube setup works for founding colonies, with the queen and brood in a humidified tube connected to a small outworld. For naturalistic setups, place flat stones or slate over dry substrate to create the sheltered microclimate they prefer. They like having multiple connected chambers close together. The nest should be kept dark or dim, as they are concealment nesters ^[1][3].

Feeding and Diet

Like most Temnothorax species, Temnothorax morea is an omnivore that accepts both protein and sugar sources. Offer small live prey such as fruit flies, springtails, or tiny crickets. They also take honeydew from aphids (or sugar water/ diluted honey in captivity). A diet of small insects supplemented with occasional sugar water works well. Feed small portions that can be consumed within a day or two, remove uneaten food to prevent mold. During the founding stage, the queen won't eat (claustral founding), but once the first workers emerge, start offering tiny food items.

Temperature and Seasonal Care

Keep the nest between 20-28°C for good brood development and activity. They are a Mediterranean species from dry, sunny habitats ^[1], they can handle brief temperature fluctuations but do best with a gradient. Use a heating cable on one side of the nest so they can self-regulate. Avoid prolonged temperatures below 15°C or above 30°C. For winter diapause, reduce temperature to 10-15°C for 8-12 weeks (roughly November-February). Stop feeding during this period and keep the nest slightly moist but not wet. Diapause is likely necessary for long-term colony health.

Behavior and Observation

Workers are active, curious foragers that explore their outworld for food. They are not aggressive and use a modified stinger to smear venom (smear defense) rather than sting, they pose no threat to keepers. Their small size makes them excellent observation subjects with a magnifying glass. They leave chemical trails to food sources, so you may see a foraging trail form. They are modest climbers but can scale smooth surfaces, use barriers. They tend to flee or hide when disturbed, which makes behavioral studies peaceful. ^[1][3]

Colony Founding

Founding behavior in this species is unconfirmed, but based on typical Temnothorax patterns, queens are likely claustral: after mating, the queen seals herself into a small chamber (under a stone, in a rock crevice, or in a provided test tube) and raises her first brood alone without foraging. She lives on her stored fat reserves and metabolic water while tending the eggs, larvae, and pupae. This founding period likely takes 6-10 weeks depending on temperature. The first workers (nanitics) will be smaller than mature workers but will immediately begin foraging. Disturbing the queen during this period can cause her to eat or abandon the brood, so be patient and avoid vibrations or bright light.

Growth and Development

Egg-to-worker development takes an estimated 6-10 weeks at 22-26°C. Cooler temperatures slow things down. The first brood typically produces a few nanitic workers, subsequent broods yield larger workers. Colony growth is slow initially, a newly founded colony may take 6-12 months to reach 30-50 workers. The growth rate increases as the colony matures and can support more brood simultaneously. Maximum colony size is unknown but likely in the hundreds, which is typical for small litter-dwelling Temnothorax species.

Frequently Asked Questions

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References