Temnothorax poldii

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Endemic to Sicily, Italy. Found in hilly to mountainous oak forests at 340-1612m elevation ^[1][2]
• Colony Type: Monogyne, single queen colonies in all documented cases ^[1]
• Size & Growth:
  • Queen: Size data unavailable, inferred from Temnothorax genus, possibly ~4-5mm
  • Worker: Inferred from genus, approximately 2.5-3.5mm. Body measurements not directly available ^[1]
  • Colony: Unknown, but likely under 500 workers based on typical Temnothorax patterns ^[1]
  • Growth: Moderate (based on related Temnothorax species)
  • Development: 6-10 weeks at optimal temperature (inferred from genus patterns) ^[2] (Specific development data for T. poldii is unavailable, estimate from related species.)
• Antkeeping:
  • Temperature: Keep at 20-24°C. This Sicilian mountain species prefers moderate temperatures, avoid overheating above 28°C ^[1][2]
  • Humidity: Moderate, keep the nest substrate damp but not waterlogged, mimicking forest floor conditions under oak coverage ^[1]
  • Diapause: Likely required. Males found in nests in August suggests seasonal breeding. Related temperate Temnothorax species typically need a winter cooling period. Specific requirements unknown ^[1]
  • Nesting: Soil-nesting species. Use test tubes for founding, Y-tong or plaster nests for established colonies. Provide damp substrate to maintain burrowing conditions ^[1]
• Behavior: Generally peaceful and non-aggressive. Workers are small and move deliberately. They forage individually or in small groups, not in large raiding parties. Their primary defense is a spatulate stinger used to smear venom onto enemies (characteristic of Crematogastrini tribe). Escape prevention is critical due to their tiny size, they can slip through standard gaps. Not dangerous to keepers.
• Common Issues: escape prevention is critical, these tiny ants can squeeze through the smallest gaps and standard ventilation mesh, newly described species means captive husbandry is not well-established, adjust care based on observations, humidity management can be tricky, too wet causes mold, too dry stresses the colony, winter care requirements are unclear, related species need hibernation but specifics for this species are unknown, slow colony growth can test keeper patience, moderate growth rate expected

Housing and Nest Setup

Temnothorax poldii is a soil-nesting species that does well in standard test tube setups for founding colonies. The test tube should have a large enough water reservoir to maintain humidity for several weeks without flooding. Once the colony has around 20-30 workers, you can consider moving them to a Y-tong (AAC) nest or a plaster nest with appropriately sized chambers. These ants are tiny, make chambers narrow and passages tight so they feel secure. Avoid large, open spaces that can stress small colonies. A layer of moist soil or sand in the outworld helps maintain appropriate humidity during feeding. Escape prevention is absolutely critical, apply fluon to all potential escape points and seal connections between nest and outworld. Use very fine mesh for ventilation because these tiny ants can escape through standard mesh sizes ^[1].

Feeding and Diet

Like most Temnothorax species, T. poldii likely accepts a varied diet of small insects and sugar sources. Feed small protein sources such as fruit flies, pinhead crickets, and mealworm pieces. Provide sugar water, honey, or sucrose solution at all times once workers emerge. In the wild, they hunt small arthropods and likely tend aphids for honeydew ^[1]. Feed small prey 2-3 times per week for growing colonies, and remove any uneaten prey within 24 hours to prevent mold. Sugar water can be refreshed every few days. Watch worker behavior, if they ignore protein, try offering smaller or different prey items. Freshly killed insects are often more readily accepted than live ones for these small foragers ^[1].

Temperature and Seasonal Care

Keep T. poldii at moderate temperatures between 20-24°C. This matches their natural habitat in the Sicilian mountains where they experience warm but not extreme conditions. Avoid temperatures above 28°C as that can stress colonies. A heating cable on one side of the nest can create a gentle gradient, allowing workers to self-regulate. Place the heating element on top of the nest, not underneath, to prevent excessive drying.

Regarding winter care, the exact diapause requirements are unknown for this species. However, males have been found in nests during August, suggesting late summer reproductive activity ^[1]. Given that related Mediterranean Temnothorax species typically experience a reduced activity period during winter, providing a cool period around 10-15°C for 2-3 months during winter is likely beneficial. Do not feed during this cool period and keep the colony slightly drier to prevent moisture issues. If your room temperature stays above 18°C year-round, a brief cooling period may not be strictly necessary, but watch for signs of stress or unusual behavior ^[1].

Colony Development and Growth

The founding method for T. poldii is not documented in research. Most Temnothorax species exhibit claustral founding, where the queen seals herself in a chamber and raises the first brood using stored fat reserves without leaving to forage. However, this has not been confirmed for this species. If following typical patterns, expect the first nanitic workers to emerge after 6-10 weeks, but this is estimated from related species, specific data is not available for T. poldii ^[1]. The initial worker batch is typically smaller than subsequent generations.

Colony growth is moderate, these are not fast-growing ants. A healthy founding colony may reach around 50 workers within the first year under good conditions. Maximum colony size is unknown but likely under 500 workers based on typical genus patterns. Growth rate depends heavily on temperature, feeding frequency, and humidity stability. Be patient with founding colonies, overfeeding can cause mold issues in small test tube setups. The colony will naturally expand as worker numbers increase, at which point you can consider transitioning to a larger nest ^[1].

Behavior and Observation

Temnothorax poldii workers are small, rust-colored ants that move deliberately rather than frantically. They are not aggressive and pose no threat to keepers. Workers forage individually or in small groups, searching for small prey and sugar sources. They do not form large raiding parties or exhibit dramatic defensive behaviors.

One notable behavior in the genus is tandem running, workers lead nestmates to food sources by running together, rather than recruiting through pheromone trails. This represents a more primitive recruitment method compared to ants that use chemical trails. Watch for workers gathering at food sources and returning to the nest to recruit others.

Their small size makes them excellent escape artists. Even a tiny gap around a lid or connection point can allow workers to escape. Apply fluon liberally to all potential escape points and check barriers regularly. Despite their small size, queens are relatively long-lived for ants, possibly 10-15 years with good care, based on related species ^[1].

Frequently Asked Questions

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References