Scientific illustration of Lioponera nayana ant - showing key identification features including head, thorax, and gaster.

Lioponera nayana

Monogynous Non-Parasitic Queen No Gamergate
Sci. Name
Lioponera nayana
Subfamily
Dorylinae
Author
Bharti & Akbar, 2013
Distribution
Found in 1 countries
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Introduction

Lioponera nayana is a tiny predatory ant belonging to the Dorylinae subfamily, native to the Western Ghats of India. Workers are uniformly black with reddish-brown mandibles, antennae, and legs, and possess notably large prominent eyes. The species is distinctive for having ergatoid queens - wingless replacement reproductives that develop from worker brood rather than emerging as large, winged queens . This species was originally described as Cerapachys nayana in 2013 before being moved to the genus Lioponera . This ant is notable for its ergatoid queen system. The distinction between ergatoid queens and large workers is vague due to significant size variation within colonies - ergatoid queens are only slightly larger than workers . As a Dorylinae ant, it is predatory, hunting small invertebrates. The species is endemic to India, found only in Karnataka and Kerala states in the Western Ghats mountain range .

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Status by country, from Kass et al. 2022 & Wong et al. 2023

Native Invasive Introduced (indoor) Intercepted Unknown
Data Sources
Year Range 2000 - 2026

Quick Summary

  • Difficulty: Expert
  • Origin & Habitat: Western Ghats of India (Karnataka and Kerala). Found in both forested and non-forested habitats, collected from small bushes and foraging over dry soil surfaces at elevations of 800-1005 meters [1][2].
  • Colony Type: Ergatoid queen system, colonies have wingless ergatoid queens that resemble workers. The distinction between ergatoid queens and workers is vague due to high size variation [1].
  • Size & Growth:
    • Queen: ~2-2.5mm total length, inferred from head and mesosoma measurements (ergatoid queen head length 0.66-0.77mm) [1]
    • Worker: ~1.5-2mm total length, inferred from head and mesosoma measurements (worker head length 0.55-0.66mm) [1]
    • Colony: Unknown, no colony size data available
    • Growth: Unknown, no development data available
    • Development: Unknown, development has not been studied for this species (No direct development studies exist for this species.)
  • Antkeeping:
    • Temperature: Unknown, no thermal studies exist. Based on its tropical Western Ghats origin (around 11°N latitude), keep warm in the range of 24-28°C. Observe colony activity and adjust accordingly.
    • Humidity: Unknown, no humidity data. Given its Western Ghats origin (a biodiversity hotspot with high moisture), aim for moderate humidity with a moist nest substrate while allowing some drier areas.
    • Diapause: Unknown, no seasonal studies. As a tropical species from the Western Ghats, it likely does not require true hibernation.
    • Nesting: No specific nesting data. In captivity, small test tubes or Y-tong nests with tight chambers would suit their tiny size. Provide moist substrate for the nest chamber.
  • Behavior: As a Dorylinae ant, this species is predatory on small invertebrates. The large prominent eyes suggest active foraging vision. Workers forage over dry soil surfaces in the wild. Ergatoid queens are wingless, suggesting colonies may expand through budding rather than nuptial flights. Escape prevention is critical due to their tiny size, standard fine mesh barriers are essential. The species has an exerted sting, though due to their small size it may not effectively penetrate human skin [1].
  • Common Issues: tiny size makes escape prevention critical, use fine mesh barriers, no available data on diet acceptance, experimental feeding required, lack of published care information makes husbandry experimental, predatory diet requirements may be challenging to meet consistently

Housing and Nest Setup

Due to their extremely small size, housing Lioponera nayana requires careful consideration of escape prevention. Standard test tube setups work well for founding colonies, but ensure the cotton plug is tightly packed and consider adding a fluon barrier to the rim. For established colonies, Y-tong nests or small formicaria with tight chambers scaled to their tiny size are appropriate. The nest chamber should contain moist substrate, these ants likely prefer some moisture like their forest-floor relatives in the Western Ghats. Given their predatory nature, include an outworld area where they can hunt and forage for prey items. Because they are so small, even standard ant keeping barriers may need reinforcement with fine mesh. [1]

Feeding and Diet

As a Dorylinae ant, Lioponera nayana is predatory in nature and will require live small invertebrate prey in captivity. Based on related Dorylinae behavior, they likely hunt springtails, small mites, and other micro-arthropods. No specific prey acceptance data exists for this species, so experimental feeding will be necessary. Start with offering tiny live prey such as springtails, fruit fly larvae, or other small insects appropriate for their size. The large prominent eyes suggest they actively hunt rather than scavenge. Sugar sources may or may not be accepted, offer occasionally but do not rely on them as a primary food source.

Frequently Asked Questions

How long does it take for Lioponera nayana to produce first workers?

The egg-to-worker development time is unknown, no studies have documented their development.

What do Lioponera nayana ants eat?

As a Dorylinae ant, they are predatory on small invertebrates. No specific prey acceptance data exists. Based on related species, they likely accept tiny live prey such as springtails, small mites, and micro-arthropods. Experimental feeding will be required to determine preferences.

Are Lioponera nayana good for beginners?

No. This species is rated Expert difficulty due to several factors: their extremely small size makes housing and escape prevention challenging, no published care information exists making husbandry experimental, their predatory diet requires consistent live prey, and colony growth may be slow due to the ergatoid queen system. This species is best suited for experienced antkeepers comfortable with experimental species.

How big do Lioponera nayana colonies get?

Colony size data is not available. No studies have documented maximum colony sizes for this species.

Do Lioponera nayana need hibernation?

Diapause requirements are unknown. As a tropical species from the Western Ghats of India, true hibernation is likely not required.

Can I keep multiple Lioponera nayana queens together?

Not documented. The ergatoid queen system suggests single-queen colonies with replacement reproductives. Combining unrelated foundresses has not been studied for this species and is not recommended.

What temperature should I keep Lioponera nayana at?

No specific requirements are documented. Based on their tropical Western Ghats origin, aim for warm conditions in the range of 24-28°C. Use a heating cable on part of the nest to create a gradient, and adjust based on observed colony behavior.

Why are my Lioponera nayana escaping?

Their extremely small size means they can squeeze through tiny gaps that larger ants cannot. Standard escape prevention is insufficient. Use fine mesh barriers, tightly fitting lids, and consider fluon on all edges. Even the gap around cotton in test tubes may need reinforcement.

When should I move Lioponera nayana to a formicarium?

Given their tiny size and the lack of published care information, keeping them in test tubes as long as possible is advisable. Only move to a formicarium once the colony is well-established with 20+ workers and showing clear space needs. The transition should be gradual with careful escape prevention.

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References

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