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

Temnothorax lagrecai

Monogynous Non-Parasitic Queen No Gamergate
Sci. Name
Temnothorax lagrecai
Tribe
Crematogastrini
Subfamily
Myrmicinae
Author
Baroni Urbani, 1964
Distribution
Found in 1 countries
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Introduction

Temnothorax lagrecai is a tiny yellowish ant native to Sicily and the Maltese Islands in the Mediterranean . Workers are small (inferred ~2-3 mm from related Temnothorax) and mostly pale yellow with a distinctive black transverse band across the gaster (abdomen) . They have relatively long propodeal spines for their size . Queens are slightly larger (inferred ~3-4 mm) with similar coloration . This species is monogynous - each colony has just one queen . It is known to host the social parasite Temnothorax muellerianus . These ants are thermophilous, preferring warm Mediterranean conditions, and are found nesting in soil under moss or in leaf litter in dry, sunny habitats .

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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: Sicily and Maltese Islands (Mediterranean) [1][2]. Inhabits Mediterranean shrublands, open forests (Pinus halepensis, Quercus ilex), and sometimes artificial gardens in Citrus leaf litter [5]. Elevation range 5-840 m a.s.l. [5].
  • Colony Type: Monogynous, single queen colonies documented in all studied cases [3].
  • Size & Growth:
    • Queen: Exact body length not recorded, inferred from related Temnothorax species: ~3-4 mm
    • Worker: Exact body length not recorded, inferred from related Temnothorax species: ~2-3 mm. Head size (CS) is ~0.5 mm, but total length is larger [1].
    • Colony: Up to 500 workers (estimated from typical Temnothorax colonies)
    • Growth: Moderate, typical for Mediterranean species
    • Development: 6-10 weeks (estimated from related Mediterranean Temnothorax species) (Development likely faster in warmer conditions given their thermophilous nature [5].)
  • Antkeeping:
    • Temperature: Keep warm,22-26°C [5]. Create a gentle gradient with a heating cable on one side so ants can choose their preferred spot. Avoid temperatures above 30°C.
    • Humidity: Moderate. Keep nest substrate slightly moist but not waterlogged, they naturally nest in soil under moss [6]. Provide a moisture gradient with some drier areas.
    • Diapause: Likely required. As a Mediterranean species, a winter rest period is expected. Keep at 10-15°C for 8-12 weeks during winter. Reduce feeding but maintain light moisture.
    • Nesting: In nature, nests in soil, often under moss or in leaf litter [6]. In captivity, use a Y-tong (AAC) nest with fine chambers, a plaster nest, or a naturalistic soil setup. Tight spaces are essential due to their small size.
  • Behavior: Generally peaceful and non‑aggressive. Workers are active foragers, collecting small prey and honeydew. They do not pierce skin, instead, they use a modified spatulate stinger to smear venom (subfamily Myrmicinae, tribe Crematogastrini, smear defense). Escape prevention is critical due to their very small size, use fine mesh (≤1 mm) and Fluon barriers. Queens sealing behavior during founding is unconfirmed.
  • Common Issues: escape prevention is critical, workers are very small (approx. 2-3 mm) and can squeeze through standard barrier gaps, use fine mesh and tight seals., colonies are slow to establish due to modest growth rate and small worker size., wild‑caught colonies may carry the social parasite Temnothorax muellerianus, inspect regularly [4]., test tube setups can dry out quickly, monitor moisture levels regularly., overheating is a risk, keep temperatures below 30°C.

Housing and Nest Setup

Temnothorax lagrecai requires careful housing due to its small size. Use a Y-tong (AAC) formicarium with the smallest available chambers, a plaster nest, or a naturalistic setup with a shallow layer of moist soil. Test tubes work for founding colonies, but you must ensure excellent escape prevention, apply Fluon or use fine mesh covers (1 mm or smaller). The nest material should hold moisture well because they naturally nest in soil under moss [6]. A small water reservoir connected to the nest helps maintain consistent humidity without flooding.

Temperature and Heating

These ants are thermophilous, meaning they prefer warm conditions [5]. Keep the nest area at 22-26°C for optimal colony development. Place a heating cable on one side of the nest to create a temperature gradient, allowing ants to self‑regulate. Avoid temperatures above 30°C as this can stress or kill the colony. During summer, room temperature often suffices, but monitor with a thermometer [5].

Feeding and Diet

Like other Temnothorax, T. lagrecai likely feeds on small insects, honeydew, and nectar in the wild. In captivity, offer small live prey such as fruit flies, pinhead crickets, or tiny mealworms. Provide sugar water or diluted honey regularly, these ants will readily accept sweet liquids. Feed protein prey 2-3 times per week and keep a constant supply of sugar water. Remove uneaten prey after 24 hours to prevent mold. Their small size means even tiny prey items are appropriate, avoid large insects that may overwhelm foragers [1].

Colony Development

Colonies are monogynous with a single queen [3]. The queen’s founding behavior is not documented in the literature (claustral or semi‑claustral unconfirmed). She will likely seal herself in and live off stored reserves until the first workers emerge. Development from egg to worker takes an estimated 6-10 weeks based on related Mediterranean Temnothorax species, faster in warmer conditions. The first workers (nanitics) will be smaller than mature workers. Colony growth is moderate, expect several months to reach 20-30 workers, with larger colonies developing over 1-2 years. Queens and males fly from early July to late August and are often attracted to artificial lights [7].

Winter Care and Diapause

As a Mediterranean species, T. lagrecai likely requires a winter diapause period. Reduce temperatures to 10-15°C for 8-12 weeks during winter. This can be achieved by moving the colony to a cool room or turning off heating cables. During diapause, reduce feeding significantly but maintain some moisture in the nest, do not let it dry out completely. After the rest period, gradually warm the colony back to normal temperatures to trigger spring activity [5].

Escape Prevention

Escape prevention is the most critical aspect of keeping this species. Workers are very small (approx. 2-3 mm) and can slip through surprisingly small gaps. Use multiple layers of defense: apply Fluon to barrier edges, use fine mesh (1 mm or smaller), and check all lid seals regularly. Even a tiny crack in a test tube cotton or gap in formicarium tubing can lead to colony loss. Inspect your setup daily, especially during the first few weeks [1].

Frequently Asked Questions

How long does it take for Temnothorax lagrecai to raise first workers?

Expect first workers (nanitics) to emerge in 6-10 weeks after the queen lays eggs, based on related Mediterranean Temnothorax species. This timeline assumes optimal temperatures around 24-26°C. Development is faster in warmer conditions and slower if the colony is kept cool. No specific published data for this species is available.

Can I keep multiple Temnothorax lagrecai queens together?

No, this species is monogynous, meaning colonies naturally have only one queen [3]. Combining unrelated queens is not recommended and will likely result in fighting. If you find multiple queens (such as ergatoid replacement reproductives), keep them separate unless you observe peaceful integration.

Do Temnothorax lagrecai ants sting?

They do not sting in the typical sense. Their stinger is modified into a spatulate shape used to smear venom onto enemies (smear defense), but they pose no danger to keepers. They are small and peaceful ants focusing on foraging rather than defense. However, their tiny size means they can escape very easily.

What do I feed Temnothorax lagrecai?

Offer small live prey like fruit flies, pinhead crickets, or tiny mealworms 2-3 times per week. Provide constant access to sugar water or diluted honey. Remove uneaten prey after 24 hours to prevent mold. Their small size means even tiny prey items are appropriate [1].

Are Temnothorax lagrecai good for beginners?

This species is rated medium difficulty. While not the hardest, their small size makes escape prevention challenging. Beginners should be prepared to invest in proper equipment with fine mesh barriers. The reward is keeping a beautiful and interesting Mediterranean species [1].

Do Temnothorax lagrecai need hibernation?

Yes, as a Mediterranean species they likely require a winter diapause. Keep them at 10-15°C for 8-12 weeks during winter. Reduce feeding during this period but maintain light moisture in the nest. This mimics their natural seasonal cycle in Sicily and Malta [5].

Why are my Temnothorax lagrecai escaping?

Workers are very small (approx. 2-3 mm) and can squeeze through gaps that seem tiny to the naked eye. Apply Fluon to all barrier edges, use fine mesh covers (1 mm or smaller), and check all seals daily. Even standard ant‑keeping equipment may have gaps too large, inspect carefully and assume they can escape through any opening larger than 0.5 mm [1].

How big do Temnothorax lagrecai colonies get?

Colony size is not well documented for this specific species, but related Temnothorax typically reach up to 500 workers. Growth is moderate, expect 6-12 months to reach 30-50 workers under good conditions. Colonies are monogynous with a single queen [3].

When do Temnothorax lagrecai queens fly?

Nuptial flights occur from early July to late August [7]. Queens and males are often attracted to artificial lights during this period. If you are looking to catch a queen, check near outdoor lights during these summer months in Mediterranean regions [7].

Is Temnothorax lagrecai a host for social parasites?

Yes, one documented colony was found hosting Temnothorax muellerianus, a known social parasite [4]. If you collect a wild colony, watch for signs of parasitic ants living in the nest. These parasites rely on host workers to care for their brood [4].

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References

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