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

Polyrhachis aerope

Non-Parasitic Queen No Gamergate
Sci. Name
Polyrhachis aerope
Subgenus
Myrma
Tribe
Camponotini
Subfamily
Formicinae
Author
Wheeler, 1922
Distribution
Found in 2 countries

Introduction

Polyrhachis aerope is a medium-sized ant native to tropical Central Africa, including Cameroon, Congo, and the Democratic Republic of Congo . Workers measure just under 6 mm and are entirely black with reddish palpi and antennal insertions . It belongs to the militaris species-group, characterized by spines on the pronotum, propodeum, and petiole . The type specimen was collected from the stomach of a frog in Niangara, Democratic Republic of Congo .

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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: Tropical Central Africa (Cameroon, Congo, Democratic Republic of Congo) [1]. Inhabits rainforest environments.
  • Colony Type: Unconfirmed, Polyrhachis species are typically monogyne (single queen), but this specific species has not been studied [1].
  • Size & Growth:
    • Queen: Unknown, not described in available literature.
    • Worker: Just under 6 mm [1].
    • Colony: Unknown, no colony size data available.
    • Growth: Unknown
    • Development: Unknown, no data. Based on related tropical Polyrhachis species, estimate 6-10 weeks at optimal temperatures. (Development timeline is unconfirmed.)
  • Antkeeping:
    • Temperature: Keep at tropical temperatures around 24-28°C, based on their Central African distribution.
    • Humidity: Maintain moderate to high humidity, mimicking rainforest conditions. Keep substrate consistently moist but not waterlogged [1].
    • Diapause: No, as a tropical species, they do not require diapause.
    • Nesting: Polyrhachis species typically nest in rotting wood, under bark, or in soil. In captivity, use Y-tong or plaster nests with moist substrate [1].
  • Behavior: Behavior is not documented. Based on genus patterns, they are likely moderately active and may be territorial. They defend by biting and spraying formic acid, as typical for Formicinae. Escape risk is moderate due to their size.
  • Common Issues: insufficient humidity can lead to desiccation and colony death [1]., escapees can establish invasive populations if not contained., uncertain diet may lead to malnutrition.

Species Background and Identification

Polyrhachis aerope was described by W.M. Wheeler in 1922 based on a worker from Niangara, Democratic Republic of Congo [1]. It belongs to the militaris species-group within the subgenus Myrma. Workers are black with reddish mouthparts, long spines on pronotum and petiole, and are closely related to Polyrhachis concava [1].

Natural Habitat and Distribution

This species is found in tropical Central Africa, specifically Cameroon, Congo, and Democratic Republic of Congo [1]. It inhabits rainforest environments with high humidity and warm temperatures [1].

Housing and Nesting

Provide a nest that maintains humidity while allowing ventilation. Y-tong or plaster nests work well for Polyrhachis species [1]. Chambers should be sized for 6mm ants. Include a moisture reservoir. The outworld should allow foraging space.

Feeding and Diet

Specific dietary preferences are not documented. Based on genus patterns, they are omnivorous, accepting sugar sources and protein foods. Offer a varied diet and monitor preferences.

Temperature and Seasonal Care

Maintain temperatures between 24-28°C with a gradient. As a tropical species, no diapause is needed.

Frequently Asked Questions

How long does it take for Polyrhachis aerope to develop from egg to worker?

The development timeline is unconfirmed for this specific species. Based on related Polyrhachis species from tropical regions, expect approximately 6-10 weeks from egg to first worker at optimal tropical temperatures (around 26-28°C).

What is the best nest type for Polyrhachis aerope?

A Y-tong (AAC) nest or plaster nest with moisture retention works well [1]. Keep the nest humid but ensure adequate ventilation to prevent mold. The chambers should be appropriately sized for 6mm ants.

Are Polyrhachis aerope good for beginners?

This species is not recommended for beginners due to limited available care information. More common species with established care guides are better choices for those new to antkeeping.

How big do Polyrhachis aerope colonies get?

Colony size is unknown, no data is available on maximum colony size for this species.

What temperature should I keep Polyrhachis aerope at?

Maintain temperatures between 24-28°C, mimicking their tropical Central African habitat. A slight gradient allowing the ants to choose their preferred temperature is ideal.

Do Polyrhachis aerope need hibernation?

As a tropical species, they do not require hibernation.

What do Polyrhachis aerope eat?

Specific dietary preferences are unconfirmed. Based on genus patterns, they likely accept sugar sources (honey, sugar water) and protein (insects, arthropods). Offer a varied diet and observe their preferences.

Can I keep multiple Polyrhachis aerope queens together?

Colony structure is unconfirmed for this species. Polyrhachis species are typically monogyne (single queen), but polygyny has been documented in some species [1]. Without specific data, combining unrelated queens is not recommended.

Where is Polyrhachis aerope found in the wild?

This species is native to Central Africa, specifically Cameroon, Congo, and the Democratic Republic of Congo [1]. They inhabit tropical rainforest environments.

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References

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This caresheet is licensed under CC BY-SA 4.0 .