Prenolepis darlena

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Nepal and Thailand, high elevation Schima-Castanopsis forest at approximately 1100 m ^[2][4]
• Colony Type: Unconfirmed, likely monogyne (single queen) based on genus patterns
• Size & Growth:
  • Queen: Size data unavailable, inferred from Prenolepis genus (~5-7 mm)
  • Worker: 2.6-3.1 mm ^[1]
  • Colony: Unknown
  • Growth: Unknown
  • Development: Estimated 8-12 weeks based on typical Formicinae development at room temperature (Direct data unavailable, estimate based on genus-level patterns)
• Antkeeping:
  • Temperature: Cool conditions, aim for 18-22°C based on high elevation habitat. Avoid overheating ^[3]
  • Humidity: Keep substrate consistently moist but not waterlogged, based on forest floor habitat ^[2]
  • Diapause: Unknown, high elevation species may require winter rest, but unconfirmed
  • Nesting: Ground-nesting species, likely prefers soil-based nests or test tubes with moist substrate ^[2]
• Behavior: Behavior unstudied in captivity. Based on genus patterns, likely docile and non-aggressive. Tiny size (under 3 mm) means escape prevention is critical, they can squeeze through standard mesh. Workers likely forage on ground for small prey and honeydew ^[1]
• Common Issues: tiny size makes escape prevention critical, use fine mesh and tight-fitting lids, no captive care data exists, this is a newly described species with unknown requirements, high elevation origin means they likely need cooler temperatures than typical room temperature, slow growth potential could frustrate beginners expecting rapid colony development, humidity needs are unconfirmed, start with moderate moisture and observe

Discovery and Taxonomy

Prenolepis darlena was described in 2016 by Williams and LaPolla from specimens in Nepal. It belongs to the Formicinae subfamily and Lasiini tribe. This species is part of a group of high-elevation Prenolepis in the Himalayan region, including P. rinpoche and others, adapted to cooler mountain forests ^[1][3][2].

Identification and Appearance

Workers are tiny at 2.6-3.1 mm total length, uniformly light brown. The head is roughly square with a straight posterior margin, and three small ocelli are present. Compound eyes are moderately large but do not extend beyond the head sides. Antennae scapes have erect setae, and the petiole is low, narrow, and elongated with a rounded dorsal apex ^[1].

Natural Habitat

In the wild, Prenolepis darlena is found in Schima-Castanopsis forests in Nepal at about 1100 m elevation, and also in Thailand. These forests are cool, shaded, and humid, with ground-nesting behavior suggested by collection methods ^[2][4].

Housing and Nesting

Start with a test tube setup with moist cotton. Keep temperatures cool (18-22°C) and avoid direct sunlight. Use soil or sand substrate to mimic forest floor. Because workers are tiny, ensure tight seals to prevent escapes. Add a small outworld for foraging ^[3][2].

Feeding and Diet

Diet is unstudied. Offer sugar water or honey for energy, and small protein like fruit flies or pinhead crickets. Remove uneaten food after 24-48 hours. Start with small portions and observe acceptance ^[5].

Temperature and Seasonal Care

Aim for 18-22°C based on high elevation habitat. Avoid heating mats. Winter diapause may be needed, but unconfirmed, monitor colony activity ^[3][2].

Frequently Asked Questions

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References