Myrmecina asthena

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Southeast Asia, including Yunnan Province, China (at 2440 m altitude), Vietnam, and Malaysia ^[1][2]. They live in leaf litter, rotting wood, soil, and under stones in humid forests ^[3].
• Colony Type: Colony structure is unconfirmed from research, but based on genus patterns, likely single-queen colonies ^[3].
• Size & Growth:
  • Queen: Size data unavailable, no measurements in literature
  • Worker: ~2.86-3.07 mm ^[1]
  • Colony: Up to 50 workers in wild colonies ^[3]
  • Growth: Slow, inferred from small colony size
  • Development: Unknown, no specific data in research (Development timeline not studied for this species)
• Antkeeping:
  • Temperature: Keep at room temperature, roughly 20-24°C, based on temperate mountain origin ^[1]. A gentle gradient is beneficial but not required.
  • Humidity: Keep nest substrate consistently moist but not waterlogged, based on natural nesting preferences ^[3].
  • Diapause: Unknown, research does not specify, but temperate origin suggests possible winter rest ^[1].
  • Nesting: Naturally nest in soil, leaf litter, rotting wood, and under stones ^[3]. In captivity, use Y-tong, plaster, or soil nests with small chambers scaled to their size.
• Behavior: Based on genus patterns, typically docile and non-aggressive. Escape risk is high due to tiny size (under 3 mm), they can slip through small gaps ^[1].
• Common Issues: escape prevention is critical due to minute size, use fine mesh and tightly sealed edges, small colony size makes them vulnerable to stress, avoid frequent nest disturbances, high humidity requirements can lead to mold if ventilation is poor, slow growth may frustrate beginners expecting rapid colony development

Housing and Nest Setup

Because Myrmecina asthena is tiny with small colonies, scale your setup accordingly. A small test tube setup works for founding colonies, use a standard test tube with water reservoir and cotton stopper, wrapped in dark material to simulate natural dark nesting sites ^[3]. For established colonies, use Y-tong, plaster, or soil nests with small, tight chambers ^[3]. Place the nest in a dark area, as they prefer dim conditions. An outworld should be small and simple. Use excellent escape prevention: apply fluon or fine mesh on all openings due to their minute size ^[1].

Feeding and Diet

Myrmecina species are generally omnivorous, feeding on small insects and honeydew in nature. In captivity, offer tiny protein sources like fruit flies or springtails, and sugar water ^[4]. Feed small amounts 2-3 times per week, removing uneaten food after 24 hours to prevent mold. Overfeeding is common with small colonies, provide only what they can consume quickly.

Temperature and Seasonal Care

Keep at room temperature (20-24°C) based on their temperate mountain origin ^[1]. During winter, reduce temperatures to 10-15°C for 2-3 months if diapause is needed, but research does not confirm this ^[1]. Gradually adjust temperatures to avoid shock.

Behavior and Handling

These ants are slow-moving and secretive, spending most time in the nest ^[3]. Handle gently to avoid stress due to small colony size. Use red light or low light for observations, as they are sensitive to bright light and vibration.

Colony Development and Expectations

Colonies remain small, with up to 50 workers in the wild ^[3]. Growth is slow, and founding behavior is unconfirmed from research. Be patient, as development timelines are unknown.

Frequently Asked Questions

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References