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

Procryptocerus sulcatus

Monogynous Non-Parasitic Queen No Gamergate
Sci. Name
Procryptocerus sulcatus
Tribe
Attini
Subfamily
Myrmicinae
Author
Emery, 1894
Distribution
Found in 1 countries
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Introduction

Procryptocerus sulcatus is a small fungus-growing ant native to Brazil, specifically the Rio de Janeiro region . Workers are small, but exact size measurements are not available in the literature . As members of the tribe Attini, these ants cultivate fungus for food rather than hunting insects . Queens were described by Kempf in 1951,but type specimens have not been located in collections . This species is an unusual choice for antkeeping due to its specialized fungus-growing behavior.

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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: Native to the Neotropical region of Brazil, specifically Rio de Janeiro. Found in tropical forest habitats [1][2].
  • Colony Type: Based on Attini patterns, likely monogyne (single-queen) colonies.
  • Size & Growth:
    • Queen: Size data unavailable [1][3]
    • Worker: Size data unavailable [2]
    • Colony: Up to 100 workers (estimated based on genus patterns)
    • Growth: Slow
    • Development: Estimated 8-12 weeks to first workers, based on Attini patterns [2] (Development may be slower due to fungus cultivation requirements)
  • Antkeeping:
    • Temperature: Keep warm, roughly 24-28°C, based on tropical habitat [2]
    • Humidity: Keep nest substrate consistently moist but not waterlogged [2]
    • Diapause: No, as tropical ants from Brazil they do not require hibernation [2]
    • Nesting: Y-tong (AAC) or plaster nests with moist substrate for fungus cultivation [2]
  • Behavior: Docile and non-aggressive. They lack functional stingers and use chemical defenses typical of Attini. Tiny size poses high escape risk [2].
  • Common Issues: escape prevention is critical due to tiny size, fungus cultivation can fail if humidity drops or contamination occurs, slow growth tests keeper patience, specialized diet requires fungus-growing substrate

Housing and Nest Setup

Procryptocerus sulcatus requires careful housing due to their small size and specialized needs. Y-tong (AAC) nests or plaster nests work well, as they hold moisture and provide damp conditions for fungus cultivation [2]. Chambers should be tight and narrow, scaled to their small size. Avoid large open spaces in the nest. Use a water reservoir to maintain humidity without frequent misting. For the outworld, a small container with moist substrate allows fungus cultivation. Escape prevention is essential: use fine mesh on ventilation holes and ensure tight-fitting lids [2].

Feeding and Diet

As fungus-growing ants, Procryptocerus sulcatus cultivates a specialized fungus garden for food. In captivity, provide organic material like leaf litter or cut-up vegetables for the fungus to grow on. Do not offer sugar water, honey, or insects as primary food [2]. The key is establishing and maintaining a healthy fungus colony, which requires a specialized commitment [2].

Temperature and Humidity

These are tropical ants requiring warm, humid conditions. Maintain temperatures around 24-28°C, avoiding below 22°C [2]. Humidity is critical: keep the nest substrate consistently moist but not waterlogged [2]. Use a water reservoir system for stable humidity [2].

Colony Establishment and Growth

Establishing a colony requires patience. Founding behavior is unconfirmed, but expect slow growth due to fungus cultivation [2]. First workers may emerge in 2-3 months under optimal conditions. Colonies likely remain small, with steady but slow growth [2]. Avoid disturbing the nest during founding [2].

Behavior and Temperament

Procryptocerus sulcatus is docile and non-aggressive. They lack functional stingers and use chemical defenses [2]. Workers are slow-moving and tend to the fungus garden. Their tiny size makes them prone to escape, so ensure secure housing [2].

Frequently Asked Questions

Can I keep Procryptocerus sulcatus in a test tube?

Test tubes are not ideal, as they cannot provide the moist substrate needed for fungus cultivation. Use a Y-tong or plaster nest with a water reservoir instead [2].

What do Procryptocerus sulcatus eat?

They cultivate a fungal garden for nutrition. Provide organic material like leaf litter or vegetables for the fungus to grow on [2].

How long does it take for first workers to emerge?

Based on Attini patterns, expect 8-12 weeks from founding to first workers [2].

Are Procryptocerus sulcatus good for beginners?

No, this is an expert-level species due to specialized fungus-growing needs [2].

How big do Procryptocerus sulcatus colonies get?

Colonies are small, likely up to 100 workers at maturity [2].

Do they need hibernation?

No, as tropical ants from Brazil, they do not require hibernation [2].

Why are my Procryptocerus sulcatus dying?

Common causes include low humidity, cool temperatures, or fungus contamination. Keep substrate moist and temperatures in the 24-28°C range [2].

Can I keep multiple queens together?

Not recommended, as Attini typically form single-queen colonies. Combining queens has not been studied and could cause aggression [2].

When should I move them to a formicarium?

Wait until the colony has at least 20-30 workers and maintains a healthy fungus garden. Ensure the new setup can maintain high humidity [2].

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References

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This caresheet is licensed under CC BY-SA 4.0 .