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

Pheidole singaporensis

Monogynous Non-Parasitic Queen No Gamergate
Sci. Name
Pheidole singaporensis
Tribe
Attini
Subfamily
Myrmicinae
Author
Özdikmen, 2010
Distribution
Found in 2 countries
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Introduction

Pheidole singaporensis is a medium-sized ant species native to Southeast Asia, ranging from Singapore and Borneo through Malaysia, Indonesia, the Philippines, Thailand, and into India and southern China . Workers have two castes: majors measure 6.8-7.9mm with large heads, while minors are smaller at 4.1-5.1mm . Body color ranges from reddish-brown to dark reddish-brown, with lighter legs and antennae. This species nests in rotting fallen logs and at the base of large living trees , and it serves as a host for specialized myrmecophilous beetles, highlighting its role in forest ecosystems .

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

Native Invasive Introduced (indoor) Intercepted Unknown
2000 - 2026

Quick Summary

  • Difficulty: Easy
  • Origin & Habitat: Southeast Asia, including Singapore, Borneo, Malaysia, Indonesia, Philippines, Thailand, India (Andaman and Nicobar Islands, Jammu & Kashmir), Pakistan, and southern China. Inhabits well-developed forests and nests in rotting logs or at tree bases [1][2][3].
  • Colony Type: Unconfirmed, based on genus patterns, likely monogyne (single-queen colonies), but not specified in research.
  • Size & Growth:
    • Queen: Size data unavailable, no total length measurements found in literature.
    • Worker: Majors: 6.8-7.9mm, minors: 4.1-5.1mm [1].
    • Colony: Colony size is not well documented.
    • Growth: Moderate
    • Development: Unknown, no specific data for this species. (Development time may vary with temperature, warmer conditions could speed up growth.)
  • Antkeeping:
    • Temperature: Keep warm, roughly 24-28°C, based on tropical habitat [1].
    • Humidity: Keep nest substrate consistently moist but not waterlogged [1].
    • Diapause: No, tropical species do not require hibernation.
    • Nesting: Y-tong, plaster, or naturalistic setups with moist substrate to mimic rotting logs [1].
  • Behavior: Generally calm, but majors will defend the nest if threatened. They possess a functional sting (less medically significant) based on subfamily characteristics. Escape risk is moderate due to their size, standard barriers and fluon are recommended.
  • Common Issues: tropical species needs constant warmth, cold drafts can stress or kill colonies., low humidity causes desiccation, their forest-floor habitat requires consistent moisture., overfeeding leads to mold in enclosed nests, remove uneaten food promptly., wild-caught colonies may carry parasites, quarantine and monitor new colonies., major workers can clip wings on alates, ensure adequate space for nuptial flights if reproduction occurs.

Nest Preferences

In the wild, Pheidole singaporensis nests in rotting fallen logs on the forest floor and at the base of large living trees [1]. For captive care, use Y-tong, plaster, or naturalistic setups with moist soil and rotting wood pieces to mimic their habitat. Keep the nest area humid with a moisture gradient, ensuring good ventilation to prevent mold.

Feeding and Diet

This species is primarily granivorous, collecting seeds like millet or sesame [1]. Offer seeds continuously and protein sources such as fruit flies or mealworms 2-3 times per week. Remove uneaten protein after 24-48 hours to avoid mold. Observation from the Philippines shows they may scavenge on protein sources like chicken bones [5].

Temperature and Care

As a tropical species, keep temperatures around 24-28°C [1]. Use a heating cable on one side of the nest to create a gradient. Avoid cold drafts or air conditioning vents.

Behavior and Temperament

Workers are generally calm but will defend the nest. Majors have large heads for seed processing and defense. They possess a functional sting (less medically significant) based on subfamily characteristics. Escape risk is moderate, use fluon on rim edges for extra security.

Colony Growth and Development

Colony growth is moderate, but specific development data is unavailable. After founding, first workers may emerge within weeks under warm conditions, but no exact timeline is documented. Consistent feeding and humidity are key for steady growth.

Frequently Asked Questions

How long does it take for Pheidole singaporensis to get their first workers?

Development time is unknown for this species, but based on typical Pheidole patterns, it may take several weeks at warm temperatures.

What do Pheidole singaporensis ants eat?

They are primarily granivorous, offer seeds like millet or sesame as a staple. Provide protein from small insects 2-3 times per week [1].

Can I keep multiple Pheidole singaporensis queens together?

Colony type is unconfirmed, but based on genus patterns, they are likely monogyne (single-queen). Multiple queens may fight, so it is not recommended.

What temperature do Pheidole singaporensis need?

Keep them warm at 24-28°C, as they are a tropical species [1].

Are Pheidole singaporensis good for beginners?

Yes, they are considered easy to keep due to their calm temperament and lack of hibernation needs.

How big do Pheidole singaporensis colonies get?

Colony size is not well documented, but typical Pheidole species can reach several hundred workers with good care.

What humidity do Pheidole singaporensis need?

Keep the nest substrate consistently moist but not waterlogged, as they naturally nest in damp rotting logs [1].

When should I move Pheidole singaporensis to a formicarium?

Move them when the colony has 50+ workers or the test tube is crowded, using a Y-tong or naturalistic setup with humidity control.

Why are my Pheidole singaporensis dying?

Common causes include cold temperatures, low humidity, mold from overfeeding, or stress. Check temperature and humidity first.

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References

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This caresheet is licensed under CC BY-SA 4.0 .