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

Nylanderia deyrupi

Parasitic Queen No Gamergate
Sci. Name
Nylanderia deyrupi
Tribe
Lasiini
Subfamily
Formicinae
Author
Messer <i>et al.</i>, 2020
Distribution
Found in 5 countries
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Introduction

Nylanderia deyrupi is a social parasite ant from central Florida, first described in 2020. Queens measure 2.35-2.88 mm in total length and have a yellow-brown body with a slightly darker head and gaster . This species is entirely dependent on its host, Nylanderia wojciki, and produces no workers of its own . A key trait is its completely wingless males, a trait unknown in other Nylanderia species. Males cannot fly and have limited mobility, so mating occurs inside the host nest through adelphogamy .

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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: Central Florida, specifically Archbold Biological Station and areas east of Sebring in Highlands County at about 61m elevation. They live in scrubby flatwoods habitat with slash pine, oak canopy (Quercus inopina, Q. geminata), palmetto, and Lyonia lucida. Nests are found in leaf-litter and pure sand at the edge of gaps in the forest [1].
  • Colony Type: Workerless inquiline social parasite, completely dependent on host colonies of Nylanderia wojciki. Host colonies are small, usually single-queen colonies. The parasite queens and males live scattered among the host's nest pockets, coexisting with the host queen without eliminating her [1].
  • Size & Growth:
    • Queen: 2.35-2.88 mm [1]
    • Worker: No workers produced [1]
    • Colony: Up to 300 workers in host colony [1]
    • Growth: Unknown
    • Development: Not applicable, workerless species [1] (Parasite produces only sexuals, development timeline for sexuals is unknown)
  • Antkeeping:
    • Temperature: Keep host colony in warm, stable conditions, roughly low-to-mid 20s°C, based on Florida habitat [1]
    • Humidity: Maintain moderate humidity matching leaf-litter habitat, substrate should be moist but not waterlogged [1]
    • Diapause: Unknown
    • Nesting: This species cannot be kept independently. It requires an established colony of Nylanderia wojciki as a host. The host nests in leaf-litter and shallow sand chambers, typically within 1-2 square meters in summer [1].
  • Behavior: This species is completely dependent on its host. The parasite queens and males live among the host brood and workers, which tend them as if they were part of the colony. Males are wingless and cannot disperse, so mating happens inside the host nest. There is no worker caste, the host workers perform all colony functions [1].
  • Common Issues: cannot survive without host Nylanderia wojciki, will die if isolated [1]., host colonies are small (up to 300 workers) and may be difficult to establish [1]., males are wingless and cannot disperse, making propagation extremely difficult [1]., species was described in 2020,so captive breeding information is limited [1]., finding host colonies in Florida requires specific scrubby flatwoods habitat [1].

Understanding Nylanderia deyrupi

Nylanderia deyrupi is a social parasite that was formally described in 2020 and is known only from central Florida. This species is a workerless inquiline social parasite, meaning it lives entirely within colonies of another ant species, Nylanderia wojciki, without producing any workers of its own. The parasite queens and males are tended by the host workers just like the host's own brood [1].

Unlike many social parasites that kill or replace the host queen, N. deyrupi is host-queen tolerant, it coexists peacefully alongside the host queen without suppressing the host's sexual development. The parasite produces only sexual forms (new queens and males), while the host workers continue to perform all colony functions including foraging, nursing, and nest maintenance [1].

A key trait is the completely wingless males. In almost all ants, males have wings to disperse and find mates. N. deyrupi males are apterous (wingless) and have reduced eyes and flight muscles. They cannot fly and have very limited mobility, so mating occurs right inside the host nest through adelphogamy, siblings mating with each other [1].

Why This Species Cannot Be Kept Like Typical Ants

You cannot keep Nylanderia deyrupi the way you would keep a typical ant species. This is a social parasite that is completely dependent on its host species, Nylanderia wojciki, to survive. Without a host colony, the parasite queens and males will simply die, they have no workers to feed them, tend to them, or maintain their environment [1].

The parasite does not found its own colonies. Instead, a newly mated queen must find and infiltrate an established N. wojciki colony. Once inside, she is accepted by the host workers (unlike many parasites that must kill the host queen first). She then lives as a permanent guest, laying eggs that are raised by the host workers alongside the host's own brood [1].

This means keeping N. deyrupi requires first establishing a healthy colony of Nylanderia wojciki, then somehow introducing the parasite, which presents enormous practical challenges given how rare both species are and how specific their habitat requirements are [1].

The Host Species: Nylanderia wojciki

If you were to attempt keeping this species, you would need to maintain Nylanderia wojciki as the host. N. wojciki is also a small Nylanderia species native to the same Florida scrub habitat. Their colonies are small, typically under 300 workers, and usually have a single queen. The workers nest in leaf-litter and shallow sand chambers, often with multiple diffuse nest pockets spread across 1-2 square meters in summer [1].

N. wojciki workers are small and active, typical of the genus. They likely feed on honeydew from aphids and scale insects, plus small insects and other protein sources. The species prefers the scrubby flatwoods habitat with slash pine and oak canopy [1].

Finding and establishing N. wojciki colonies would be the first major challenge, they nest in very specific habitat in central Florida and colonies are small. Then introducing the parasite without destroying the host colony would be the second challenge [1].

Distribution and Natural History

Nylanderia deyrupi is known only from a very limited range in central Florida, specifically around Archbold Biological Station and areas east of Sebring in Highlands County. This is one of the most restricted distributions of any ant species. The elevation is approximately 61 meters above sea level [1].

The habitat is scrubby flatwoods, a fire-maintained woodland ecosystem with slash pine, various oak species (Quercus inopina and Q. geminata), saw palmetto, and Ericaceae like Lyonia lucida. The ants are found in leaf-litter at the edge of gaps in the forest, in pure sand [1].

This extremely limited distribution, combined with the species' dependence on both a specific host species and a specific habitat, makes N. deyrupi one of the most conservation-sensitive ants in North America. It should not be collected from the wild under any circumstances [1].

Frequently Asked Questions

Can I keep Nylanderia deyrupi in an ant formicarium?

No. This is a workerless social parasite that cannot survive without its host species Nylanderia wojciki. It has no workers to forage, feed, or maintain the colony. Keeping it would require first establishing a host colony, then introducing the parasite, which is essentially impossible given how rare both species are and how specific their requirements are [1].

Does Nylanderia deyrupi have workers?

No. This is a workerless species, it produces no worker caste whatsoever. The parasite queens and males live entirely within host colonies, where the host workers perform all colony functions. This is a trait of inquiline social parasites [1].

Where does Nylanderia deyrupi live?

Only in central Florida, around Archbold Biological Station and areas east of Sebring in Highlands County. They live exclusively in colonies of their host species Nylanderia wojciki, which nests in leaf-litter and sand in scrubby flatwoods habitat [1].

How do Nylanderia deyrupi males mate if they have no wings?

The males are completely wingless (apterous), which is unique among Nylanderia ants. They have very limited mobility and cannot fly or disperse. Instead, mating occurs inside the host nest through adelphogamy, the males mate with females (often their sisters) right in the nest where they were raised [1].

Do Nylanderia deyrupi queens kill the host queen?

No. Unlike many social parasites that kill or replace the host queen, N. deyrupi is host-queen tolerant. The parasite queens coexist peacefully alongside the host queen without suppressing the host's reproduction. Both parasite and host sexuals are produced in the same colony [1].

How many workers does a host colony have?

Nylanderia wojciki host colonies are small, typically under 300 workers. They are usually monogynous (single queen). The nests are often diffuse in summer, with multiple shallow chambers spread across 1-2 square meters [1].

When was Nylanderia deyrupi discovered?

This species was first described in 2020 by Messer, Cover, and Rabeling. It is one of the most recently described ant species in North America and was recognized as a new species precisely because it is a social parasite with unique morphology [1].

Can I find Nylanderia deyrupi in the wild and catch a queen?

You should not attempt this. The species has an extremely limited distribution in central Florida, lives only inside host colonies, and is one of the rarest ants in North America. Additionally, N. wojciki is also a specialized species with specific habitat requirements. Both species should be left in their natural habitat [1].

What makes Nylanderia deyrupi different from other ants?

Several things make it unique: it is completely workerless (produces no workers), it is a permanent social parasite that cannot survive without a host, it has wingless males (unique among Nylanderia), it has a strongly female-biased sex ratio, and it mates inside the host nest through adelphogamy [1].

Is Nylanderia deyrupi dangerous or aggressive?

Not at all, and you would never encounter them in a situation where they could affect you. They are tiny parasites that live inside other ant colonies. Even the host species Nylanderia wojciki is a small, harmless ant that poses no threat to humans [1].

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References

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