Tetramorium sabatinellii

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Semi-desert area with sparse vegetation in Jordan,686 m altitude. Nest found in soil under a stone ^[1].
• Colony Type: Monogyne (single queen), inferred from typical Tetramorium genus patterns.
• Size & Growth:
  • Queen: Total length unknown, based on genus Tetramorium, estimated around 3-4 mm (inferred).
  • Worker: Total length unknown, based on genus Tetramorium, estimated around 2-3 mm (inferred).
  • Colony: Unknown, the type series contained 44 workers,1 queen, and 1 male, but actual colony size may be larger ^[1].
  • Growth: Moderate (estimated from genus patterns).
  • Development: 6-10 weeks (estimated based on typical Tetramorium development). (Development time hasn't been studied for this species. The estimate assumes warm temperatures (24-28 °C).)
• Antkeeping:
  • Temperature: Keep at 22-28 °C. As a semi-desert species, they prefer warm conditions but avoid extreme heat above 30 °C. A heating cable on one side of the nest creates a suitable gradient.
  • Humidity: Low to moderate, semi-desert habitat means they prefer drier conditions. Keep the nest substrate lightly moist but allow drying between waterings. Avoid constant saturation.
  • Diapause: Probably minimal or none. Given their Jordanian origin, true hibernation is unlikely. They may slow down in cooler months but can be kept at room temperature year-round.
  • Nesting: Natural nesting is in soil under stones ^[1]. In captivity, Y-tong (AAC) or plaster nests work well. Provide a thin layer of dry to slightly damp substrate for burrowing.
• Behavior: Typical Tetramorium behavior, workers are active foragers and moderately aggressive when defending the nest. They belong to the Crematogastrini tribe, so they have a modified, flattened stinger used to smear venom onto enemies rather than piercing flesh. This species is omnivorous, accepting both protein and sugar. Escape risk is moderate due to small size, use fine mesh barriers.
• Common Issues: small size requires effective escape prevention (use fine mesh barriers)., overheating risk, semi-desert species but still need moderate temperatures, avoid extremes above 30 °C., captive care unstudied, this species has never been kept in ant farms, advice is based on genus patterns., moisture sensitivity, too much humidity may cause problems given semi-desert origin, keep substrate dryer than for rainforest species.

Origin and Natural Habitat

Tetramorium sabatinellii was discovered in Jordan, making it one of the more recently described species available to ant keepers ^[1]. The type locality is a semi-desert area along the Amman-Aqaba road, about 50 km south of Amman at an elevation of 686 m ^[1]. The nest was found in soil under a stone, which is typical for many ground-nesting Tetramorium species ^[1].

Jordan's climate features hot, dry summers and mild winters, with sparse vegetation in semi-desert regions. The species is known only from this single locality ^[2]. For captive care, replicate these conditions, warm temperatures and lower humidity than rainforest species.

Temperature and Care

As a semi-desert species from Jordan, Tetramorium sabatinellii prefers warmer temperatures than many common ant species. Keep the nest area at 22-28 °C, with a slight gradient so workers can choose their preferred zone. A heating cable on one side of the nest works well.

Avoid temperatures above 30 °C, as even heat-adapted species can suffer from overheating. Room temperature (around 22-24 °C) is usually fine. During winter, a slight temperature drop is acceptable but not required, true hibernation is unlikely given the warm origin. Monitor colony behavior and adjust if workers seem sluggish or overly clustered.

Feeding and Diet

Tetramorium species are typically omnivorous, eating both protein and carbohydrates. Offer small protein sources like fruit flies, small crickets, or tiny pieces of mealworm. Because the workers are very small, chop prey into appropriately sized bits. Provide sugar water or honey water at all times as an energy source.

Feed protein 2-3 times per week. Remove uneaten prey after 24-48 hours to prevent mold. Live prey is usually better accepted than dried options.

Nesting Preferences

In the wild, this species nests in soil under stones in semi-desert areas ^[1]. In captivity, mimic these conditions with a Y-tong (AAC) or plaster nest that offers both dry and slightly moist zones. Keep the substrate lightly moist but allow the surface to dry between waterings. Avoid the constant saturation used for rainforest species.

Adding a thin layer of substrate in the outworld can encourage natural foraging and digging behaviors.

Colony Structure and Development

Based on typical Tetramorium patterns, this species likely forms single-queen (monogyne) colonies ^[1]. The type nest series included one queen along with 44 workers and one male, suggesting an established colony ^[1].

Development time hasn't been studied directly. From similar Tetramorium species, egg to worker probably takes about 6-10 weeks at optimal temperatures (24-28 °C). The first workers (nanitics) will be smaller than mature workers. Colony growth is expected to be moderate, with several months needed to reach significant numbers. The maximum colony size is unknown.

Behavior and Temperament

Tetramorium sabatinellii workers are active foragers, typical of the genus. They are moderately aggressive when defending their nest but not particularly territorial away from it. Workers are small (under 3 mm total length) but numerous enough to protect the colony effectively.

As members of the Crematogastrini tribe, they have a modified, flattened stinger used to smear venom onto enemies rather than piercing flesh, a defense mechanism known as 'smearing'. Despite having a stinger, the small size means any sting to humans would be negligible. Escape risk is moderate to high due to their size, use fine mesh or talcum powder barriers at all outworld connections.

Frequently Asked Questions

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References