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

Nylanderia caerula

Non-Parasitic Queen No Gamergate
Sci. Name
Nylanderia caerula
Tribe
Lasiini
Subfamily
Formicinae
Author
LaPolla & Kallal, 2019
Distribution
Found in 2 countries

Introduction

Nylanderia caerula is a tiny ant species native to the Dominican Republic. Workers measure 2.30-2.50 mm in total length . They have a dark brown body with distinct blue iridescence visible under light microscopy, particularly on the mesopleuron and gastral tergites . Antennae, mandibles, and legs are lighter brownish-yellow, contrasting with the dark body . This species nests under rotten logs in leaf litter, found in humid woodland near streams and dry scrub forest at elevations of 407-722 m . They are ground-nesting and adaptable to various habitats .

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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: Medium
  • Origin & Habitat: Dominican Republic, in humid woodland near streams and dry scrub forest at 407-722 m elevation [1].
  • Colony Type: Colony structure is unconfirmed. No published data on queen number or social structure.
  • Size & Growth:
    • Queen: Size data unavailable, no queen measurements published.
    • Worker: 2.30-2.50 mm [1]
    • Colony: Unknown, no published colony size data.
    • Growth: Unknown
    • Development: Unknown, no direct development studies exist for this species. (Development timeline is unconfirmed.)
  • Antkeeping:
    • Temperature: Keep warm, roughly 24-28°C, based on tropical origin [1].
    • Humidity: Keep nest substrate consistently moist but not waterlogged, based on humid woodland habitat [1].
    • Diapause: No diapause required, as species is tropical [1].
    • Nesting: Ground-nesting species that prefers humid conditions. Use Y-tong or plaster nests with soil or sand in outworld [2].
  • Behavior: Workers are small (2.3-2.5 mm) and fast-moving. They are not aggressive but escape risk is high due to tiny size. Use fine mesh barriers [1].
  • Common Issues: tiny size means escapes are likely without fine mesh barriers and tight-fitting lids., high humidity needs can lead to mold if ventilation is poor, balance is key., newly described species (2019) means limited care information, some trial and error expected., tropical species will struggle in cool rooms, heating is essential year-round., small colony size means they may be slow to establish, patience required.

Housing and Setup

For Nylanderia caerula, use a setup that recreates their natural leaf litter environment. A Y-tong nest works well for humidity control [2]. Since they are ground-nesting, include a deep outworld with soil or sand [2]. Provide leaf litter or rotting wood to mimic habitat [1]. For escape prevention, use fluon on rims and fine mesh due to their tiny size [1].

Feeding and Diet

Feeding requirements for Nylanderia caerula are unconfirmed. No specific dietary studies exist for this species. As a general ant care practice, provide sugar sources and small proteins, but the exact needs are unknown.

Temperature and Humidity Management

Keep temperatures around 24-28°C based on tropical origin [1]. Maintain high humidity by keeping nest substrate moist but not waterlogged, based on humid woodland habitat [1].

Understanding Their Unique Appearance

Nylanderia caerula has blue iridescence on dark brown body, visible under light microscopy [1]. The species name 'caerula' means sky blue [1].

Colony Establishment and Growth

This species was described in 2019,so captive care information is limited [1]. Founding behavior is unconfirmed. Growth rate and colony size are unknown.

Frequently Asked Questions

How long does it take for Nylanderia caerula to produce first workers?

No direct studies exist. Development timeline is unknown for this species.

What size colony do Nylanderia caerula reach?

The maximum colony size is unknown, no published data exists.

Can I keep multiple Nylanderia caerula queens together?

Not recommended. There's no data on whether this species accepts multiple queens. Combining unrelated foundresses carries risk of fighting and colony failure.

What do Nylanderia caerula eat?

Specific diet is unconfirmed. Offer sugar water and small proteins as general ant care, but exact needs are unknown.

Do Nylanderia caerula need hibernation?

No, being from tropical Dominican Republic, they do not require hibernation. Keep temperatures stable year-round.

Are Nylanderia caerula good for beginners?

They fall into the medium difficulty range. Their small size requires excellent escape prevention, and limited care information means some trial and error is expected.

When should I move Nylanderia caerula to a formicarium?

Start with a test tube setup for the founding queen. Move to a larger nest when the colony shows signs of crowding, but specific timing is unconfirmed.

Why does my Nylanderia caerula have blue on it?

That's their characteristic blue iridescence! The species name 'caerula' means 'sky blue' in Latin [1].

What's the best humidity level for Nylanderia caerula?

Keep nest substrate consistently moist but not waterlogged, based on their humid woodland habitat [1].

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References

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This caresheet is licensed under CC BY-SA 4.0 .