Temnothorax dongzhi

Quick Summary

• Difficulty: Hard
• Origin & Habitat: Sichuan, China, at elevations of 2050–2513 m in Pinus yunnanensis forest and semi-evergreen broadleaf forest ^[1]
• Colony Type: Unknown – colony structure has not been documented for this newly described species
• Size & Growth:
  • Queen: Queen size data unavailable – no specimens have been described
  • Worker: 3.3–4.0 mm ^[1]
  • Colony: Unknown – colony size has not been documented. Most Temnothorax species maintain small colonies, but this is speculative.
  • Growth: Unknown
  • Development: Unknown – development time for this species has not been studied (No specific data, any timeline would be an estimate from related species.)
• Antkeeping:
  • Temperature: Based on their high-altitude origin, keep the colony cool, ideally between 15–22 °C during active months. Room temperature (20–24 °C) may be acceptable, but avoid prolonged temperatures above 25 °C. More precise requirements are unknown ^[1].
  • Humidity: Keep the nest substrate consistently moist, as these ants inhabit humid mountain forests. Provide a moisture gradient with one side moister and the other drier.
  • Diapause: Likely yes – given their high-altitude climate, a cool winter rest period is probably necessary. Provide 5–10 °C for a few months, or stop diapause only if the colony shows signs of slowing naturally.
  • Nesting: Use Y-tong (AAC) nests with small chambers, test tubes, or plaster nests. They naturally nest in small cavities in wood or under bark, replicate with narrow passages and damp substrate.
• Behavior: Workers possess a modified stinger used for smearing venom (not a painful sting) and are generally timid, preferring to flee and hide. Escape prevention is critical due to their tiny 3.3–4.0 mm size – they can slip through standard mesh. Use fine mesh (≤0.5 mm) and tight-fitting lids. They forage arboreally in the wild and may climb in captivity.
• Common Issues: escape prevention is critical due to their tiny size – standard barriers are ineffective, high-altitude origin means they likely need winter diapause – colonies may struggle without a cool period, newly described species means captive husbandry is not well-established – expect to learn through experience, colony growth rate is unknown, which may be frustrating for impatient keepers, wild-caught colonies may carry parasites that can devastate captive populations

Housing and Nest Setup

Because these ants are so small (3.3–4.0 mm ^[1]), their nest must have very small chambers and narrow passages. Y-tong (AAC), plaster, or test tube setups work well, make the nest chambers just a few millimetres high. Keep the nest substrate moist but never waterlogged. Since they forage arboreally in the wild ^[3], provide vertical climbing surfaces in the outworld. Escape prevention is absolutely critical – gaps that seem tiny are wide enough for them. Use fine mesh (≤0.5 mm) on ventilation and check all lid seals regularly. A thin layer of fluon around the rim of the outworld provides an extra barrier.

Temperature and Seasonal Care

Temnothorax dongzhi comes from high elevations in Sichuan, where temperatures are cool year-round ^[1]. Keep your colony at 18–24 °C (likely the upper end of their comfort zone). Avoid heat sources. During winter, reduce to 5–10 °C for a few months – an unheated basement, shed, or refrigerator works. Do not feed during diapause, but keep the nest slightly moist. Resume normal temperatures gradually in spring. These care tips are inferred from habitat data, no specific captive studies exist.

Feeding and Diet

Based on their arboreal foraging habitat ^[3], they likely consume honeydew and small arthropods. In captivity, provide constant access to sugar water, honey, or diluted maple syrup. For protein, offer small soft-bodied prey like fruit flies, pinhead crickets, or pieces of mealworm. Feed protein 2–3 times per week, adjusting to colony demand. Remove uneaten prey after 24 hours to prevent mold. These guidelines are general and unstudied for this species.

Colony Development and Growth

No specific data exists on the development timeline or growth rate of T. dongzhi. Founding queens have not been observed, and colony sizes in the wild are unknown. Be patient – if you obtain a queen, avoid disturbing her for at least a few weeks. Expect slow progress compared to larger, well-known species. Any timelines from related Temnothorax are purely speculative.

Behavior and Temperament

Like other members of the tribe Crematogastrini, T. dongzhi uses a modified, spatulate stinger to smear venom onto enemies rather than injecting it. They are not aggressive toward keepers and prefer to hide or flee. Their foraging is arboreal in the wild ^[3], so they enjoy climbing surfaces. Because they are tiny and timid, they are unlikely to cause any harm, simply handle with care to avoid losing them.

Frequently Asked Questions

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References