Temnothorax messiniaensis

Temnothorax messiniaensis

Temnothorax messiniaensis is a small, recently described ant species endemic to Greece, specifically found in the southern Ionian Islands and Peloponnese region ^[1]. Workers are distinctly colored with a yellow to ochre body and a wide dark band across the rear of their abdomen (first gastral tergite), while the head, antennae, and legs are similarly yellowish ^[1]. They are relatively large for the genus, with workers measuring around 3mm in total length based on their WL measurement of 0.723mm ^[1]. Queens are larger at 5-6mm with a yellowish-brown to brown coloration ^[1]. These ants belong to the aveli species group and are characterized by their long, thin propodeal spines that point upward ^[2].

This species is notably polygynous, meaning colonies contain multiple queens working together ^[1][3]. In the wild, they nest exclusively inside dry stems of various herbs and shrubs, a typical trait for Temnothorax species ^[1][3]. They prefer warm, sunny Mediterranean habitats including roadsides with shrubs, olive plantations, maquis, phrygana, and forest edges ^[1][3]. Being a recently described species (2019), there is limited captive breeding data, but they follow typical Temnothorax care patterns.

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Endemic to Greece, southern Ionian Islands and Peloponnese. Found in sunny localities from lowlands to highlands (8-670m elevation). Inhabits roadsides with Mediterranean shrubs, olive plantations, maquis, phrygana, and forest edges. Also found in city parks and pine forests on rocky hills ^[1][3].
• Colony Type: Polygynous, colonies contain multiple queens working together ^[1][3]. This is unusual among Temnothorax, as many species are monogyne (single queen).
  • Colony: Polygyne
  • Founding: Claustral
• Size & Growth:
  • Queen: 5-6 mm ^[1], estimated from related species and morphology measurements
  • Worker: ~3 mm total length (WL: 0.723mm) ^[1]
  • Colony: Unknown for this specific species, typical Temnothorax colonies reach dozens to a few hundred workers
  • Growth: Moderate, typical for the genus
  • Development: 6-10 weeks at optimal temperature, estimated based on typical Temnothorax development (Development time is estimated as this specific species has not been studied. Related Mediterranean Temnothorax species typically develop in 6-10 weeks at room temperature.)
• Antkeeping:
  • Temperature: Keep at 20-26°C. They prefer warm Mediterranean conditions. A gentle gradient with a heating cable on one side of the nest works well
  • Humidity: Low to moderate, they naturally nest in dry plant stems. Keep the nest area relatively dry, similar to their natural dry stem nesting habitat. A small water tube for drinking is sufficient ^[1][3]
  • Diapause: Yes, as a temperate species from Greece, they likely require a winter rest period of 8-12 weeks at 10-15°C
  • Nesting: Provide dry, narrow spaces that mimic their natural stem nests. Test tubes with cotton stoppers work well, or small acrylic nests with tight chambers. They prefer tight, enclosed spaces ^[1][3]
• Behavior: Generally peaceful and non-aggressive. Workers are small but active foragers. They are not known to sting and pose no danger to keepers. They may be shy and hide when the nest is disturbed. Escape prevention is important due to their small size, use fine mesh barriers ^[1]
• Common Issues: small size means escapes are likely without fine mesh barriers, polygynous colonies may be harder to establish than single-queen species, limited captive data means growth expectations are uncertain, dry nesting preference means overwatering can be fatal, winter diapause is required but timing may differ from standard schedules

Housing and Nest Preferences

Temnothorax messiniaensis nests in dry plant stems in the wild, so your setup should mimic this. Test tubes work excellently for founding colonies, use a small test tube with a cotton stopper at the water end and a dry area for the ants. The chamber should be tight and enclosed, as these ants feel safest in snug spaces ^[1][3]. For established colonies, small acrylic nests or ytong nests with narrow chambers work well. Avoid large, open spaces, these ants will feel exposed and may not thrive. Keep the nest relatively dry, they come from dry Mediterranean stems, not damp soil. A small water tube provides drinking water without creating humidity. Escape prevention is critical due to their tiny size, use fine mesh on any openings ^[1].

Feeding and Diet

Like most Temnothorax, these ants are omnivorous and will accept a variety of foods. Offer sugar water or honey regularly as an energy source, they need carbohydrates for their workers. For protein, provide small insects like fruit flies, small mealworms, or pinhead crickets. They are small, so prey items should be appropriately sized. You can also occasionally offer tiny pieces of seeds or dead insects. Feed small amounts a few times per week, removing any uneaten food after 24 hours to prevent mold. A constant sugar source (honey water or sucrose water) is recommended, with protein offered 2-3 times weekly.

Temperature and Seasonal Care

Keep your colony at 20-26°C, with a slight gradient if possible. They come from warm Mediterranean Greece and prefer temperatures in this range ^[1][3]. A heating cable on one side of the nest can create this gradient, place it on top of the nest, not underneath, to avoid drying out the nest too quickly. During winter, they will need a diapause period. Reduce temperature to 10-15°C for 8-12 weeks, typically from late autumn through winter. This rest period is important for colony health and may trigger reproductive behavior in spring. Do not feed during diapause, but keep a small water source available. Return to normal temperatures gradually in spring.

Colony Structure and Multi-Queen Care

Temnothorax messiniaensis is polygynous, meaning colonies naturally have multiple queens ^[1][3]. This is unusual among Temnothorax and affects how you should house them. Unlike monogyne species where extra queens are killed, multiple queens can coexist peacefully in this species. When establishing a colony, you may receive multiple queens, this is normal and they should be kept together. The presence of multiple egg-layers can speed up colony growth initially. However, this also means colonies may be more sensitive to disturbance during founding. If you are combining unrelated foundresses, do so carefully and monitor for aggression. Established polygynous colonies tend to be more resilient to queen loss since they have replacements ^[1].

Behavior and Handling

These ants are peaceful and not aggressive toward keepers. Workers are small but active, foraging for food both day and night. They are not known to sting and pose no danger to humans ^[1]. When their nest is disturbed, workers may hide or carry brood deeper into the nest rather than attacking. They are not escape artists in the aggressive sense, but their tiny size means they can squeeze through very small gaps. Always use fine mesh on any openings and check for gaps in your setup. Workers communicate through chemical signals and may use tandem-running (leading each other to food) like other Temnothorax species. They are generally shy and do best with minimal disturbance, observe them through the nest walls rather than opening frequently.

Frequently Asked Questions

References