Temnothorax algiricus

Temnothorax algiricus

Temnothorax algiricus is a tiny arboreal ant belonging to the angustulus species group. Workers measure approximately 3-4mm with a dark brown to blackish body, though some populations show a bicolored pattern with reddish mesosoma and nodes contrasting against a dark head and gaster ^[1]. This species was previously confused with related species like T. angustulus and T. mediterraneus until recent taxonomic revisions ^[1]. Found across the western Mediterranean including southern Spain, the Balearic Islands, Sicily, Sardinia, Corsica, and North Africa (Morocco, Algeria, Tunisia), with isolated records in Croatia and Malta ^[1]. These ants are arboreal, nesting exclusively in small cavities within dead twigs and branches on trees and shrubs ^[2][3].

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Western Mediterranean region including southern Spain, Balearic Islands, Sicily, Sardinia, Corsica, and North Africa. Inhabits low-altitude forests and coastal areas, nesting in dead twigs on trees such as oak, pine, and strawberry tree ^[2][4].
• Colony Type: Single-queen colonies (monogyne). Nests are found in small cavities within dead branches, typically with one queen and up to a few dozen workers ^[2].
  • Colony: Monogyne
  • Founding: Claustral
• Size & Growth:
  • Queen: Approximately 5-6mm (estimated based on related species in angustulus group)
  • Worker: 3-4mm ^[1]
  • Colony: Small colonies, typically under 200 workers based on typical arboreal Temnothorax behavior
  • Growth: Moderate
  • Development: Estimated 6-8 weeks at optimal temperature based on genus-level data for similar Mediterranean species (Development times are inferred from related species, specific data for T. algiricus is not available)
• Antkeeping:
  • Temperature: Keep at 20-26°C. Mediterranean origin means they prefer warm, stable conditions. A gentle gradient is beneficial but not required ^[3].
  • Humidity: Moderate humidity around 50-70%. Being arboreal, they tolerate drier conditions than ground-nesting species. Provide a water tube but avoid oversaturating the nest.
  • Diapause: Yes, a winter rest period of 2-3 months at 10-15°C is recommended for Mediterranean species. Reduce feeding and keep in a cool location during this period.
  • Nesting: Arboreal setup is essential. These ants naturally nest in small twigs and dead branches. Y-tong (AAC) nests with narrow chambers work well, or you can provide natural twigs/branches in a naturalistic setup. Avoid large, open spaces.
• Behavior: Generally docile and non-aggressive. Workers are small and active, foraging primarily on vegetation and tree surfaces. They feed on honeydew, small insects, and nectar. Escape risk is moderate, their small size means they can slip through small gaps, so use fine mesh on any openings. They are arboreal by nature and will often climb on vegetation if provided.
• Common Issues: colonies are small and slow-growing, resist the urge to overfeed or disturb the nest frequently, arboreal nesting means they need vertical structures or twigs, horizontal test tubes alone may not be ideal, tiny workers can escape through standard mesh, use fine mesh or fluon barriers, winter dormancy is important, skipping diapause can weaken colonies over time, wild-caught colonies may have parasites or be already stressed, quarantine and monitor closely

Housing and Nest Setup

Temnothorax algiricus is an arboreal species, meaning it naturally lives in small cavities within dead twigs and branches on trees. For captive care, a Y-tong (AAC) nest with narrow chambers works well, these tiny ants do best in tight, enclosed spaces rather than large open areas. You can also create a naturalistic setup using actual twigs or small branches, which more closely mimics their natural habitat. If using test tubes, choose ones with narrow diameters that match their small size. Provide some vertical structure in the outworld so workers can climb and forage naturally. Escape prevention is important, use fluon on container edges and fine mesh on any ventilation openings since these ants are tiny ^[2][3].

Feeding and Diet

Like most Temnothorax species, T. algiricus is omnivorous with a preference for sweet liquids and small protein sources. Offer sugar water, honey, or diluted maple syrup as a constant carbohydrate source. For protein, provide small prey items like fruit flies, pinhead crickets, or other tiny insects. They have been observed foraging on extrafloral nectaries in the wild, so they will readily accept sweet substances ^[5]. Feed small prey items 2-3 times per week, and keep a sugar source available at all times. Remove uneaten prey after 24 hours to prevent mold. Because colonies remain small, overfeeding is a common mistake, offer portions appropriate to your colony size.

Temperature and Seasonal Care

As a Mediterranean species, T. algiricus prefers warm conditions in the range of 20-26°C. Room temperature within this range is typically suitable. They occur naturally in warm coastal regions of Spain, Italy, and North Africa, so they handle typical room temperatures well ^[3]. During winter, a diapause period of 2-3 months at 10-15°C is recommended. This mimics their natural seasonal cycle and helps maintain colony health. Reduce feeding during diapause and avoid disturbing the colony. If your room temperature stays above 18°C year-round, consider placing the colony in a cooler location (like an unheated garage or basement) for winter dormancy.

Colony Structure and Growth

Temnothorax algiricus forms single-queen colonies (monogyne), with colonies typically containing under 200 workers at maturity ^[2]. Nests are found in small cavities within dead twigs, a queen with 20-34 workers has been recorded in natural nests ^[4]. Growth is moderate, expect 6-10 months from founding to first workers, and another year or two to reach moderate colony size. These are small, long-lived ants that prioritize stability over rapid expansion. Colonies are best kept with minimal disturbance, especially during the founding stage. Workers are small (3-4mm) and relatively long-lived compared to many other ant species.

Frequently Asked Questions

References